how do you practice walking around with your chests puffed out and your stomachs held in? do you have your girlfriends or wives stand behind you with a knife to your backs?
Funny thing is that I noticed that many of the guys who were big, ripped and wearing UnderArmor shirts were NOT doing that. One of the very first lessions Milos taught me was to stand up straight and always, always keep your abs tight (obviously that's not just bbing thing, but real-world as well).
Many of the huge guys were walking around in their UnderArmor sporting a pregnant belly with ripped abs. It was really surprising that none of them had been taught how to walk properly after all those years of training.