Bear that gives charm as if someone is inside

It stands up to get food and waving your hands, aligning both hands, and charm of theme park mascot.

How did you learn how?

Details are as below.
Bears of bear farming climbers in Hokkaido. I am doing the gesture like inviting.
YouTube - Hokkaido Bear Ranch Representation


Is the pose good for bears different?
YouTube - Bear Ranch Bear Bear


Bears of Showa Shinzan Bear Ranch.
YouTube - Hokkaido Bears Hokkaido Bear Ranch


From around 6:27 pm, the raccoon next door also appeals with a pierced ears.
YouTube - Showa Shinzan Bear Ranch