I’ve learned French in school for 5 years, but I only speak it on a relatively basic level, despite living very close to France and crossing the border quite often. Not too big of a deal though, as many people in Alsace also speak a German/Alemannic dialect.
The expectations will probably be different between cultures but personally, nothing. It’s a gift after all, giving them money for it would make it a business transaction. Of course, when there’s an opportunity, I’d give out some food or drinks to my friends as well.