It's a tricky juggling act, and for most folks I'd recommend hitting the club or bar before trying anything else.
CL is a numbers game, and you'll have to respectfully answer as many ads as you can, showing exactly how you fit the criteria specified.
Oh, and if you're outside of what the ad wants?
I'd never go out with the sole intention of getting lucky but if someone approached me it wouldn't be an auto no.
TBH,it's all a bit of fun and to steal a tag line-"No matter who you like,love safe sex" as long as it's fun and safe then off with them.
It should be fun, give you a better idea as to what you're after, and allow you a pretty decent (and accurate) matching mechanism for similarly-minded folks.
Then start searching, making sure you take full advantage of Ok Cupid's excellent offerings: choose folks looking for someone with your sexual orientation, within a certain geographical region and age range, and then click "casual sex". More » I wish that I could strongly and wholeheartedly recommend more dating sites for those seeking hookups, no-strings-attached relationships, friends with benefits, casual encounters, or other, primarily sexually-based relationships.
This is most definitely an anything goes type of place, so do take that into account when visiting.: Flesh out your profile fully with details about what you're after, what you offer, and where you're at relationship-wise.
Make sure you post at least a few pictures of yourself; face pics definitely increase your chances of getting a reply (although you can limit to showing your face to 'friends' only).
For open-minded, adventurous singles and couples, Fet Life might be something to check out.