ההתנהגות שלך עשתה עליי רושם טוב, במיוחד כי נשארת רגועה.

Because ההתנהגות is a feminine noun in Hebrew.

• התנהגות = behavior
• It is grammatically feminine
• So the verb must also be feminine singular in the past: עשתה

That is why the sentence says:

• ההתנהגות שלך עשתה...
• literally: your behavior did...

Even though behavior is not a person, Hebrew still gives nouns grammatical gender, and verbs often have to agree with that gender.

The ה at the beginning is the definite article, like the in English.

• התנהגות = behavior / behavior in general
• ההתנהגות = the behavior

So ההתנהגות שלך is literally your behavior, or more literally the behavior of yours.

In Hebrew, when a noun is made definite with your / his / her / etc., it is often also marked with ה:

• הספר שלי = my book
• החבר שלך = your friend
• ההתנהגות שלך = your behavior

That is the normal Hebrew way to express possession.

Hebrew usually says:

• the noun + של + possessor

So:

• ההתנהגות שלך = your behavior
• literally: the behavior of yours

This is different from English, where possession often comes before the noun:

• your behavior
• my book
• his car

In Hebrew, שלך comes after the noun.

This is a fixed Hebrew expression:

• לעשות רושם על... = to make an impression on...

So:

• עשתה עליי רושם = it made an impression on me

The parts are:

• עשתה = made / did
• עליי = on me
• רושם = impression

Even though English says make an impression on someone, Hebrew uses almost the same structure, so this expression is worth learning as a whole:

• זה עשה עליי רושם = it made an impression on me
• היא עשתה עליי רושם טוב = she made a good impression on me
• ההתנהגות שלך עשתה עליי רושם טוב = your behavior made a good impression on me

Because the verb phrase לעשות רושם על... requires על.

In Hebrew, some expressions simply take a different preposition than English learners might expect. Here, the correct pattern is:

• לעשות רושם על מישהו = to make an impression on someone

So:

• עליי = on me
• עליו = on him
• עליה = on her
• עליהם = on them

You should learn עשה רושם על as one chunk, not word by word.

עליי means on me.

It is על + the pronoun me in a combined form.

Some useful forms:

• עליי = on me
• עליך = on you
• עליו = on him
• עליה = on her
• עלינו = on us

So in this sentence:

• עשתה עליי רושם טוב = made a good impression on me

Because in Hebrew, adjectives usually come after the noun.

So:

• רושם טוב = a good impression
• literally: impression good

This is very common in Hebrew:

• ילד טוב = a good boy
• ספר מעניין = an interesting book
• אישה חכמה = a smart woman

Also, the adjective has to agree with the noun in gender and number:

• רושם is masculine singular
• so the adjective is טוב, also masculine singular

Because רושם is a masculine noun.

In Hebrew, adjectives agree with the noun they describe:

• masculine singular → טוב
• feminine singular → טובה

Since רושם is masculine, Hebrew says:

• רושם טוב

Even though earlier in the sentence התנהגות is feminine, that does not affect טוב here. The adjective טוב describes רושם, not התנהגות.

This part means you remained calm, addressed to a female.

There are two agreement clues here:

• נשארת
• רגועה

In unpointed Hebrew, נשארת can be written the same for masculine and feminine you remained, but רגועה clearly shows the person addressed is female, because it is a feminine adjective.

So:

• נשארת רגועה = you remained calm, said to a woman
• to a man: נשארת רגוע

It is past tense.

The verb נשארת here means you remained / you stayed.

So the structure is:

• ההתנהגות שלך עשתה... = your behavior made...
• במיוחד כי נשארת רגועה = especially because you remained calm

Even though English might sometimes say because you stayed calm, Hebrew uses the past form נשארת.

Because of רגועה.

Hebrew adjectives agree with the person they describe:

• רגוע = calm, masculine singular
• רגועה = calm, feminine singular

So:

• נשארת רגועה = you remained calm, speaking to a woman
• נשארת רגוע = you remained calm, speaking to a man

The verb spelling נשארת by itself is not enough to tell in normal unpointed writing, because masculine and feminine you remained are often written the same way. The adjective makes it clear.

Yes, with a small change:

• ההתנהגות שלך עשתה עליי רושם טוב, במיוחד כי נשארת רגוע.

The only visible change here is:

• רגועה → רגוע

That is because the sentence is now addressed to a man.

במיוחד means especially or particularly.

It highlights the reason that follows:

• במיוחד כי נשארת רגועה
• especially because you remained calm

It adds emphasis, meaning that the calmness was an important part of why the behavior made a good impression.

כי is a very common way to say because in everyday Hebrew.

So:

• במיוחד כי נשארת רגועה = especially because you remained calm

Other Hebrew words and phrases can also mean because, such as:

• מפני ש...
• בגלל ש...

But כי is short, natural, and very common in speech and writing.

Yes, in many situations you could say:

• במיוחד בגלל שנשארת רגועה

That would still sound natural.

However, כי is often simpler and smoother here. Both work, but כי is very common in this kind of sentence.

Because נשארת רגועה gives the sense of remained calm or stayed calm, not just were calm.

Compare:

• היית רגועה = you were calm
• נשארת רגועה = you stayed/remained calm

The second one suggests that there may have been pressure, tension, or a difficult situation, and the person continued to be calm throughout it. That is often exactly the nuance the speaker wants.

Yes, it is natural.

Hebrew speakers commonly use:

• עשה/עשתה עליי רושם
• עשה/עשתה עליי רושם טוב
• עשה/עשתה עליי רושם רע

So this sentence sounds normal and idiomatic.

Another natural option could be:

• ההתנהגות שלך הרשימה אותי
• your behavior impressed me

But עשתה עליי רושם טוב is perfectly good Hebrew and slightly closer to made a good impression on me.

Yes, but it is less direct and somewhat different in feel.

• עשתה עליי רושם טוב is the standard everyday expression
• השאירה עליי רושם טוב literally means left a good impression on me

That version is understandable and possible, but עשתה עליי רושם טוב is the more basic and common expression to learn first.

התנהגות comes from the root נ-ה-ג, which is connected with behaving / conducting oneself / driving / leading in different forms.

The noun התנהגות is related to the verb:

• להתנהג = to behave

So:

• ההתנהגות שלך = your behavior
• related idea: איך את מתנהגת = how you behave

This is useful because Hebrew learners often benefit from connecting nouns and verbs from the same root.

Because Hebrew organizes possession, adjectives, and some expressions differently from English.

Here are the main differences in this sentence:

• ההתנהגות שלך = your behavior
  Hebrew: noun + שלך

• רושם טוב = good impression
  Hebrew: noun + adjective

• עשתה עליי רושם = made an impression on me
  Hebrew uses the fixed expression עשה רושם על

So while the full sentence matches English fairly closely in meaning, several smaller parts follow normal Hebrew patterns rather than English ones.

A simple pronunciation guide would be:

ha-hit-na-ha-GUT shelakh as-ta a-LAI RO-shem tov, be-mi-YU-khad ki nish-AR-t re-gu-AH

A few notes:

• ההתנהגות has stress on the last syllable: -gut
• עליי is pronounced roughly a-LAI
• רגועה has stress on the last syllable: -AH

If the sentence is addressed to a man, the last word becomes:

• רגוע = ra-GU-a

Yes, in many contexts that is a very natural English rendering.

Literally it is your behavior, but depending on context, English might prefer:

• your behavior
• the way you behaved

That kind of flexibility is normal in translation. The Hebrew itself still uses the noun behavior, not a full clause.

You would change the second part to plural:

• ההתנהגות שלך עשתה עליי רושם טוב, במיוחד כי נשארת רגועה = to one woman
• ההתנהגות שלכן עשתה עליי רושם טוב, במיוחד כי נשארתן רגועות = to several women
• ההתנהגות שלכם עשתה עליי רושם טוב, במיוחד כי נשארתם רגועים = to several men or a mixed group

So Hebrew changes both the possessive word and the verb/adjective agreement.

Yes — several chunks are very useful:

• ההתנהגות שלך = your behavior
• עשה רושם על... = make an impression on...
• רושם טוב = a good impression
• נשאר רגוע / נשארת רגועה = stay/remain calm
• במיוחד כי... = especially because...

Learning chunks like these will help you speak more naturally than translating one word at a time.