Application should open a link in browser, copy that and paste it on the Python application window.
Pause/Play Spotify Song: Open ONLY index and middle finger together (keep rest of your fist tight) to pause/play current session's Spotify song.
Control Volume: Put ONLY your index finger and thumb together (again, keep the rest of the fingers in your fist) and make a line with it, length of that line will be the volume.
Finally, show your entire hand with all fingers out to confirm.
Skip to Next Song: Quick swipe in the air with your entire hand visible from left to right.
Skip to Previous Song: Quick swipe in the air with your entire hand visible from right to left.