Hearts and Spades are pretty well-known. Euchre less so, although it was possible in my dorm when I was in college, I think probably because one person taught a

Hearts and Spades are pretty well-known. Euchre less so, although it was possible in my dorm when I was in college, I think probably because one person taught a few people who got into it. I've been responsible for spreading the play of Up and Down the River (aka Oh Hell) in a couple social circles, so all it takes is one person to get the game to take root in a community. I think that Hearts or Up and Down the River are the most accessible of the trick-taking card games (the former doesn't require bidding and the latter ends up being entertaining because of the dealer squeeze that happens in most hands).