In the washroom

Make out in a washroom or something. It's a confined space and is perfect for cornering your guy/girl. I was able to do this at after school in a stall of a washroom with my gf, when no one else was around. And it's intense if you don't wanna get caught being in the opposite sex's washroom because you've gotta hide yourselves somehow in the small space. And if you make it out of the situation without being seen, it makes a good laugh and brings you two even closer. ;)