Some gyms are huge and have  dozens of enthusiastic guys training: in other quieter places it may be just you and your best buddy. And y'all spend time together outside the gym, too... ...what works for these guys would for sure work for you too!  Great that a lot of these guys have camera phones...  OK - let's get away from the gym now... all still wanting to show of their strength/muscles though:    

Such a great location for a bit of flexing and posing! Inspiration for the rest of us... An example of guys going for the cut and trying to lose some mass: And two younger guys with a way to go, but determination to get there...