When you are eligible to CrushTime, happn sends you a notification indicating that you can play a game called CrushTime: for each game, a 4-profile grid will display and you will have to guess who has Liked you.
The first try is free. If you want to play again, you must send a SuperCrush in order to find out which profile has Liked you.
Please note that a Like gets sent by default to the other user you have selected.
Let chance work its magic!