This check helps to keep automated requests out. Your browser solves a small puzzle in the background and ticks the box itself. There is nothing for you to do.
It runs entirely on WannaWhisky's servers. Unlike reCAPTCHA and services like it, nothing is sent to another company, nothing is stored on your device, and how you move or type is never even measured.
WannaWhisky is made for people, not for bots. This security check helps to enforce that. All done in a privacy-respecting manner.