Ná die stort vee ek my gesig met ’n skoon handdoek af.

Because ná means after.

In Afrikaans, the accent helps distinguish it from na, which usually means to or towards. So:

• ná = after
• na = to, towards

So Ná die stort means After the shower.

This is a very common Afrikaans word-order pattern.

Afrikaans is a verb-second language in main clauses. That means the finite verb normally comes in the second position of the clause. If you put a time phrase first, like Ná die stort, the verb still has to come second, so the subject ek moves after it:

• Ná die stort vee ek ...

If you started with the subject instead, you could also say:

• Ek vee my gesig ná die stort met ’n skoon handdoek af.

Both are grammatical. Starting with Ná die stort puts a little more focus on the time.

Here stort is a noun meaning shower.

So:

• die stort = the shower

In this sentence, Ná die stort is a natural way to say after the shower or after showering.

English sometimes leaves this a bit looser, but Afrikaans often uses the article naturally in this kind of phrase.

Because this is a separable verb.

The full verb is afvee, which means something like wipe off, wipe down, or in this context dry by wiping.

In a main clause, Afrikaans often splits this kind of verb:

• vee goes in the normal verb position
• af goes to the end of the clause

So:

• vee ... af = wipe off

This is similar to English phrasal verbs such as wipe off.

That is the normal place for the particle of a separable verb in a main clause.

So in:

• vee ek my gesig met ’n skoon handdoek af

the particle af comes after the object and the other phrase(s).

A good way to think of it is:

• afvee is one verb in meaning
• but in this sentence structure, it gets split into vee ... af

Yes. my can mean either my or me, depending on where it appears in the sentence.

Here it comes directly before the noun gesig, so it is clearly the possessive:

• my gesig = my face

If it were an object pronoun, it would appear in a different position, for example:

• Hy sien my = He sees me

So the sentence structure tells you which meaning my has.

Because Afrikaans normally uses a possessive with body parts in sentences like this.

So it is very natural to say:

• Ek was my hande = I wash my hands
• Ek vee my gesig af = I wipe/dry my face

English does the same thing here, so this part is actually quite straightforward for an English speaker.

This phrase tells you what is used to do the action.

• met = with
• ’n = a/an
• skoon handdoek = clean towel

So met ’n skoon handdoek means with a clean towel.

Grammatically, this is an instrument phrase: it shows the means by which the face is wiped/dried.

’n is the Afrikaans indefinite article, equivalent to English a or an.

A few important things about it:

• It is written with an apostrophe: ’n
• It is usually pronounced very weakly, like a neutral vowel
• It does not get a capital letter, even at the beginning of a sentence

So at the start of a sentence you would write:

• ’n Skoon handdoek lê daar.

Not ’N skoon handdoek.

This is one of the small spelling conventions that learners often notice early on.

Yes. In this sentence, skoon simply means clean.

So:

• ’n skoon handdoek = a clean towel

That is the normal everyday meaning here. Even if you may come across other uses of skoon in different contexts, in this sentence there is no special nuance: it just means the towel is clean.

Yes, absolutely.

Even though the literal idea is wipe off, in the context of after the shower it naturally suggests drying your face with a towel.

So depending on context, English might render it as:

• wipe my face
• wipe my face dry
• dry my face

All of those fit the Afrikaans sentence reasonably well.