In Japan, popstars and celebrities aren't the only ones with handshaking events: Otters have them, too.
This isn't the first zoo in Japan to offer this, and several other zoos and animal parks also offer similar experiences -- and have for a while now. Below, you can see an otter shaking hands at Wakayama Adventure World in a video from a few years back.
I had no idea did that these small otters had such cute, little hands. (The handshaking part is only at the beginning of the video.)
Though, I figured they'd like snacks.