"You can’t play outdoors until you finish your homework." "You don’t have to tell me, I know!"
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means play and the verb vocab version is to play.
You want to play with everyone, but every once in a while someone doesn't want to play with you. You know what? That's okay. If someone doesn't want to play with you, they're the a**hole (あそ), not you.