Most Helpful Girl
well while you are only talking to or hanging out (without getting physical) you can be in contact with how many guys as you want to.
Try to start focusing on 2 or 3 max thou, it gets confusing otherwise. The important thing is also that the guys know that there are other competitors in the race. If they know, they can decide on their own if they want to hang in there or split.
Eventually you'll fall for one more than the others, and when that happens you need to cut off the other guys and focus more on your potential boyfriend.
If not, he will feel played. Always think about stuff the other way around, how would something make YOU feel if you where on the other side.
have fun and be safe :-)