"You are wearing a nice shirt"
Translation:Unavaa shati zuri
When learning other languages, we got to leave our language way of thinking. It's hard, but necessary to, because there's no perfect translation to so many situations, and we have to be flexible.
In this case, it looks like the verb -vaa (infinitive "kuvaa") means "to put on" or "to wear", and the context will define the meaning each time you see/use that.