What to expect from a boardgame café?

I'm finally taking the plunge and going to a boardgame café after playing pretty well exclusively with my family (outside of DnD or CoC) for years.ive checked out their website and they seem really nice and inclusive. They even do vegan food!

My question is really that outside of the games I usually play (Mysterium, Escape from Colditz, Selfish, Betray at House on the Hill, Horrorfied and some card games) I don't know a lot of them super well and I don't want to be that one noob who takes too much time learning rules.

Is there any etiquette I need to know?