I'll have to go with whiskey, but I'd also have to refrain when the flask came my way. I just can't do hard liquor well at all.

I will, on rare occasion, partake in a nip of liqueurs. Limoncello is one of my favorites and you might find it in a good liquor store. Rosolio is another, but you can't find that anywhere here in the States. I've made both with Everclear as a base. The Limoncello came out great, but the Rosolio didn't do so well. It wasn't bad, but it was nothing like what I tasted once that came from an old Italian maker. That was some dreamy stuff and I'll buy a bottle or two of that if I ever find it again.

I like to bring liqueurs like these because most people have never tasted them and it's fun to share and try something new like that. They're also fun and pretty easy to make.