I don't really get that bored when doing cardio exercises because I can just go outside and move around and stuff. But for resistance, your options seem kind of limited. All I can think of is pushups, curlups, lifting weights, etc... . . Is there anything else I can do to build muscles that isn't so tedious?. . Or is there something you do while lifting or pushups or whatever that makes it less boring?. . Also, I'm pretty, for lack of better terms, weak and skinny. What are some efficient ways to look more built? (mainly the arms, and wrists).