Well, once again, as I'm sure u'v read before, all snakes are different. If ur snake happily crawls around you when u have have him/her out the I'm sure s/he is fine. But if the entire time s/he is just curled up, s/he is probably not so happy. And, in the end, it all narrows down to your instincts, this may sound corney but I can sort of feel when my snake is uncomfortable, when he would rather be left alone, partially because of the hissing, but sometimes he dosen't hiss, and he just doesn't do any thing, but that's only happened once or twice.
Sometimes he hisses when he wants to come out, but I just scared him. So it's all down to your gut instinct, and how your snake is acting.
P.S. Nice moves ;-)