Only moving the bar-bell an inch while their training partner tells them how huge they are.
Making eye contact with every girl in the gym, cause you "know" they want you. Then claiming they are a lez when they look creped out.
Having 5 set of dumbbells around you well doing shoulder press and using none of them for anything except putting your feet on.
Pointing out every guy in the gym bigger than you and claiming that he is on "juice".
Carrying around you $15 GNC shaker bottle in the gym, for everyone to see.
Putting far to much weight on the squat rack bar, unracking it, shaking for a few seconds, re-racking then stand there for 5 minutes like you actually did something others should be impressed with
Throwing 60's down so they make more noise than the 125's
Stopping mid-set to see who is watching you.
Wearing hair gel and/or cologne
Debating with cronies at the gym how quickly you can get drunk after, but of course you have to take you muscle tech first
Carrying around you muscle tech bottles in your bag, and displaying them in the change room so others can see you are serious.
think shoulder bis, chest bi's, tris, bis, is an amazing work out cycle, but it has to be done twice a week
Missing a work out because they forgot their no-explode at home, and if Ronnie can't train with it how can they?
Keeping the bottles of every supplement you have ever bough on display in your room to impress anyone who comes over
When someone starts doing more weight than you on an exercise, point out their terrible form and why it allows them to do more, or if that fails claim an old sports injury means you have to stop this exercise and slink away to another area of the gym