It all depends on you. I've seen the halls full of single guys following girls around but not speaking to anyone and I've seen single guys chatting away before heading up stairs with a group of people.
If your the shy nervous type it may not be for you but if your outgoing and sociable then it's worth giving it a try.
Xxxx
"Possibly to meet new friends and watch others possibly join if welcome "
You'll be ok then!
Just talk to people and be friendly and non pushy and you'll be fine xxx