Choppin works exactly like mining. However, unlike ore nodes, there is only one of each tree and it never goes away. Trees also drop leaves based on what region it's in. Eventually, trees will run out of leaves to drop, however they will regenerate leaves over time.
Choppin also has a minigame which you can play for additional wood, EXP and leaves.
In this minigame, you need to tap on the screen when the little is over a green or yellow area to receive points. You get one point if you click while in the green and two points while in the yellow!
The more points that you obtain, the more rewards you get. Rewards come in the form of Choppin EXP, Leaves, and the Logs that tree drops. Be careful though, because if you play the minigame with less than 5% efficiency then you won't get any rewards at all. You get 5 plays per day (account-wide) which resets at the same time as the shop resets. You can purchase additional minigame plays from the Gem Shop.
Every time the arrow hits the side, the game speeds up. Avoid touching the sides as much as possible.
The yellow bar is worth 2 points AND slows the game down a little.
Click multiple times when the arrow passes over the green at the start. Necessary to get highest score possible.