I wouldn't concern myself with not being able to hide it. Just don't flaunt it (or wear spandex) and you'll be fine. If people ask you just say you've been hitting the gym hard for the past month or so. Just think of all the people that hide it from their wives, girlfriends - me included. I've only gotten compliments. I've even joked with my friends about 'roids, they have no clue! By the way, put on 18 lbs in 8 weeks.