I am 25 and went to vegas for the first time with five other friends last fall. Get presale tickets to dayclubs and nightclubs. Look up who the star dj is and find out who is most popular. Obviously the popular one has the best looking girls going to it.
Talk to every girl you make eye contact with. Hooking up with girls is soooo easy.
Gambling is good for killing time between hooking up with girls and meeting them.
Drink lots of water. I can't give advice on drinking or eating because I was so pumped up on adrenaline I ate about 3 meals in four days and nights.
Every tourist is your best friend.
What happens in vegas stays in vegas except for those friends who snitch on you to your ex gf
Just let go of everything in your life when you go to vegas.