Help urgent

Hi! I need an urgent advise.

I am currently dating my boyfriend for six months now and he is from a different social class than me, my friends are too classy and on Friday we’re partying together. I’m really afraid of him not liking my friends and my friends not liking him because of this difference. Sometimes he does not how to behave and I’m scared that he does not behave well when he’s with my friends should I tell him how to behave before going to party with them.

Thank you