Mine both do this. I think it has something to do with them being in a new environment, they feel un-easy and vulnerable. While they may enjoy being outside with the sun shining, they are still wild animals with wild instincts. Theyre instincts are prolly saying "eat or be eaten", and go into survival mode. I know when I try putting my male in a tote outside he instantly puffs out his beard and gets feisty. Yet if I let him sit on my shoulder he is fine and almost seems to feel safe with me on guard... My female doesn't mind the tote outside experience, however I got a lizard leash and let her run about. When I first tried to pick her up she wouldn't let me, puffed out and thrashed about. So I let her back down and roam for a few more minutes. The second time I moved in to pick her up, I moved slow, pet her on her back for a moment before picking her up. Its like she understood the second time that I wasnt goin to harm her and it was okay.