Hem Idk what you mean, it's "how to celebrate?" (so I let you do) or "How you'll celebrate new year?" if so, with my friends we will do our traditional "marathon on drugs" if I can say.
Every new year we are selecting 2-3 drugs of our choice with 2 clean guys, and we discuss, generally in a free-party next to the music.
Maybe it's look a bit immature but we got a lot of conditions and we all know our limits, we are careful.