hoesik jarieseoneun joyonghi insaman haesseo.

회식 is a company dinner or work gathering, usually with coworkers, often after work.

자리 literally means seat or place, but in this kind of expression it often means occasion, setting, or event.

So 회식 자리 means something like:

• the work dinner
• the company gathering
• the occasion of the staff dinner

It sounds a little more like at the work-dinner setting/event than just naming the dinner itself.

Using 자리 adds a nuance of the social setting / the occasion itself.

Compare the feel:

• 회식에서는 = at the company dinner
• 회식 자리에서는 = in that company-dinner setting / on that occasion

The version with 자리 can feel a bit more natural when talking about behavior in a particular social situation.

-에서는 is basically -에 + 는.

• 에 marks a location or setting: at / in
• 는 adds topic or contrast

So 회식 자리에서는 means:

• at the company dinner, as for that situation...
• in that setting...
• sometimes with a slight contrast like at least in that situation

This can imply something like:

• At the company dinner, I only quietly said hello
• maybe contrasting with other situations where the person acted differently

조용히 is the adverb form, meaning quietly.

• 조용한 = quiet as an adjective before a noun
  
  • 조용한 사람 = a quiet person
• 조용히 = quietly modifying a verb
  
  • 조용히 인사했어 = I greeted quietly

Since it describes how the greeting was done, the adverb 조용히 is needed.

인사 means greeting or to say hello/goodbye, depending on context.

만 means only / just.

So 인사만 했어 means:

• I only greeted them
• I just said hello
• I did nothing more than greet them

It often implies that the speaker did not:

• talk much
• participate actively
• stay engaged in conversation
• do anything beyond the minimum social courtesy

In Korean, 만 directly attaches to the word it limits.

So:

• 인사만 했어 = only greeting is what I did
• more naturally in English: I only said hello

This tells you that the greeting was the only action worth mentioning.

If the speaker wanted to emphasize a different thing, 만 would attach elsewhere.

Yes. Korean often leaves out the subject when it is obvious from context.

So 회식 자리에서는 조용히 인사만 했어 most naturally means something like:

• I only quietly said hello at the company dinner
• or possibly he/she only quietly greeted people at the company dinner

Without context, the subject is not stated. In everyday conversation, though, listeners usually understand it from the situation.

했어 is the casual, non-polite past form of 하다.

Here it means:

• did
• said hello
• greeted

The tone is:

• informal
• used with friends, close coworkers, younger people, or in casual narration

If you wanted a polite version, you could say:

• 회식 자리에서는 조용히 인사만 했어요.

Not necessarily.

In this sentence, 조용히 describes the action in that situation, not the speaker’s personality.

So it means:

• they greeted quietly
• they kept a low profile and only said hello

It does not automatically mean:

• they are generally shy
• they are always quiet
• they have a quiet personality

It only tells you how they acted at that work gathering.

Yes, very often that is the implication.

Because of 인사만 했어, the sentence suggests something like:

• they only gave a greeting and nothing more
• they kept interaction to a minimum
• they may have stayed reserved or withdrawn

So the overall feel is often:

• At the company dinner, I just quietly said hello and that was about it.

Yes. 인사하다 is commonly used for to greet.

Depending on context, it can include:

• saying hello
• introducing yourself politely
• offering formal greetings
• saying goodbye

In this sentence, it most naturally means to greet people / say hello at the gathering.

Yes, Korean word order is flexible, though some versions sound more natural than others.

Original:

• 회식 자리에서는 조용히 인사만 했어.

Possible variation:

• 회식 자리에서는 인사만 조용히 했어.

Both are understandable, but the original sounds smoother and more natural in many contexts.

The original order puts the adverb 조용히 before 인사만 했어, which clearly gives the sense:

• quietly, I only greeted people

Often, yes.

The 는 can mark the setting as a topic and can also hint at contrast, even if the contrast is not explicitly stated.

So it may suggest something like:

• At the company dinner, at least, I only quietly said hello
• maybe in other situations, something different happened
• maybe elsewhere the speaker talked more, but not there

This contrast can be very subtle. Sometimes it is just topic marking, and sometimes it carries a stronger as for that situation... feeling.