I want to know, too. I'd suggest a lot of deadlifts and overhead presses, plus pullups and pushup variations, and a shitton of vegatarian food, but I'd like to hear how you plan to manage this. A point to consider is that generally Gorillas are morose, peaceful, and highly social creatures. I think beating your chest on a regular basis is to be recommended- I used to do this to join in with the morning chorus while bellowing. It's a great start to the day.