From playing a lot of home games, I see that alcohol makes tight passive sloppy loose aggressive. I haven't seen too many good players play drunk live, but maybe that's why they stay profitable. THC, I think, tends not to affect a skilled player's style as much but will really tighten up a weaker player. Also, if you are not partaking in the activities, try to switch the game to Omaha or Seven Card, b/c high people will often forget what what cards have been exposed and subsequently folded, or will goof up and play three hole cards in omaha more often (happens to everyone here there).