Blow bubbles in his/her water bowl?

[Kyoko]

I have no idea what she is doing, but every so often Charlie would stick her whole muzzle in her water bowl and blow bubbles like she is bobbing for an apple or something. She looks like she is having fun or something, but looks strange as well! Does anyone else's doodle does this?!

[Nancy, Ned, Clancy, and Charlie]

Ned and my Springer "dance" in the bowl but don't blow bubbles.

[Nancie & Gracie Doodle]

Mine does it all the time but usually with a tennis ball. She loves to put her tennis ball in the water, drink and then push the ball around with her snout like she is washing it. Then she pushes it down to the bottom of the bucket and submerges her entire face! Does the same in her kiddie swimming pool!

[Becky and Bella]

Yes, Bella blows bubbles in her bowl and then lets the water run out of her mouth onto the floor. It's the strangest thing. She definitely enjoys this activity.

[Kyoko]

Isn't it strange? I wonder what they are doing...?