Blender Grease Pencil 2D animation scene "hat buddy"

This's a traditional frame by frame 2D animation done with Blender GP.

I first animated the character pushing down the hat, then I copied the keyframes and mirrored them, so this way the animation will play backward (ping pong). By doing this the character will look like he's pulling up his hat again. It's just a simple trick to achive this simple loop animation. Download the file and take a closer look and don't forget to have fun. Peace.