If you share a class with a girl or girls you're interested in, do you usually go for the kiss/make-out on the first day of meeting her or do you gradually build attraction since you will constantly be spending time together.

Just curious on your guys' take on this.

Also, there are multiple girls in my class I talk to. All of which seem quite interested in me and I would like to see the different ways you guys would handle this situation as far as maintaining attraction, while still keeping my options open