Wherever the social dynamic allows. Parties, class (towards the end of term, don't shit where you eat), wherever you can really.
But for those who have never dated, relax. A s/o is not mandatory. In all honesty, having a boy/girlfriend isn't a necessity. If you really want one, go to a bar, but order a non-alcoholic drink. Otherwise, pubs are good because they allow good conversation.
I'd advise taking your time. Don't let yourself get hurt. Good luck :)
You can try Tinder or site like that. I've had friends find their boyfriends off those things. Of course, dating off of an app may seem risky, but that's where a lot of people are at now. If you have a fear of someone being a possible threat, make a date somewhere local and popular, so you can feel safe. If bars and stuff aren't your thing, i'm assuming parties may not be either, so honestly, give Tinder a go. It's not embarrassing or anything, almost everyone i know has one and they all have a lot of fun! They actually meet people and have a good time and like i said, some have even met their current boyfriends on it.
I don't drink either. I find that the best thing to do is to put yourself into a position where you can meet new people. For example, I'm at uni and I'm currently dating a girl that I met at the library. I'm in a rowing club and there are a lot of female members who I like to talk too.
Lookup group meetups in your area catered to topics you are personally interested in, and find people in those places.
OH AND IF SOMEONE SAYS DARK BACK ALLEY IN A GHETTO, DON'T DO IT. DON'T FUCKING DO IT. DON'T BE A PROFESSIONAL VICTIM POSTING SELFIES HOLDING A PIECE OF PAPER WITH FEMINIST SHIT WRITTEN ON IT AFTER NOT TAKING MY COMMON SENSE ADVICE. If you have to, bring a taco. Tacos are great self defense weapons! Especially hard shell tacos!
When I use to date I would get asked out a lot in the library or after class. Are you more shy or out going? Do you have friends who will set you up?
A date is more personal than an outing. the person is trying to get to know you more deeply than they would on a friendship level. On our second date, my future husband asked me if I wanted to get married and have kids lol.