A Crucifix Frog taps her tootsies.
These fidgety feet attract the attention of insect prey in a ruse known as pedal luring.
…Video: Australian Museum
Impatience!
Wiggle wiggle wiggle
This behavior shows up in a lot of small frogs, and is no less adorable in the rest of them. Some captive-raised frogs start tapping as soon as they see the food container, not even waiting for actual food to appear.