It's not that easy, that video is a bit misleading.
They have the cham on a short branch, he can not turn around to attemt escape, which is exactly what they do.
It takes both hands, when you get the first hand partly under them, they tend to make a fast U turn. You can use your other hand so you have a hand in front, and in back of him.
When you do get him on your hand, keep fingers together, and thumb out of bitting range.
They will also wrape their tail around anything they can, to anchor themselves. So you need to be quick once you do have him fully on your hand. Also, hold him well away from your face.
You dont want him to think you are about to eat him!!
If you do it right, a little practice, you are unlikely to get bitten.
