if you’re making the invitation personally, you can say “we’ll be having dinner and a glass of wine at my place on thursday…” or “we’re going to have a few drinks and watch the game, you interested?” I’m not sure how well this would translate to a written invitation, is all
realsocialskills replied:
Those seem like phrases that would be ok on an evite or Facebook event too.
I think for formal events with printed invitation, the default assumption is that there will be alcohol unless it’s explicitly stated otherwise. Alcohol is part of formal event hosting culture.