Eyes

This picture was drawn with my eyes while I was working on a UX experiment with Artificial Intelligent where text changes size depending on human's position in front of the screen.
A camera detects eyes position and calculates the distance between them.

Check it out here: https://make-me-big.glitch.me/
If you want to play with AI, the experiment's code is open here: https://glitch.com/~make-me-big