Funny thing, I never tried. I saw other friends and saw how it affected them and I said no bleeping way.
This is me; I had a pretty varied group of friends in college (I didn't really hang with my dorm mates, I hung with another dorm) so I saw a lot. One crowd were drinkers (my crowd), one crowd were the Dead Heads (shrooms, weed), and one crowd were the harder drugs. Those guys were fucked up, man. It just wasn't a world I wanted to hang in. No judgment , you be you, but in my little pea brain, cocaine really is the Devil's Dandruff. I didn't mind being around drunks, I didn't mind being around people that were high, but being around people coked up was a) never fun, and b) almost never led to anything good. It always seemed so... dark.
EDIT: Plus Lenny Bias died when I was a freshman (well, summer between freshman and sophomore) so there's that role model, too.