Just keep taking him out for short sessions, maybe 10 to 15 minutes. But remember not all snakes react the same. It may take some time but he should get used to you handling him. We have four Bp's all 08's and three of them never cause a fuss or ball up when they are picked up. But the other one will still hiss sometimes and is very jumpy if you make sudden movements. So she needs to be handled a little different, and watched more closely when handled.