To play, first you must find eight different benches and read the strange inscriptions on them. Then all you have to do is click a bench. A drop down list with bet options reflecting your current Bitcoin balance will show up. Click an amount listed and your avatar will kick the bench. Benches pay zero, 150%, 200%, 250%, and sometimes 300% of the wager.
Bench kicking is a purely luck game. There are no "tips or tricks" to playing.