Feats are special goals in Book of Heroes that earn you Hero Score and Hero Tokens when you complete them. When you complete a feat, your Hero Score increases and an in-game notification is sent to all your friends so they can see what feat you just accomplished. You can view your feats at any time from the Character Menu by tapping your portrait in the top-left of the screen and then tapping the "Feat" icon, represented by the amulet icon.