The context of the following conversation is Carson wanted to impress the girl in band class, so Carson learned to play the trumpet.:
Carson says So what do you think?.
The friend responds You bought a trumpet because you think it will impress some girl?.
Carson responds Not just bought, mastered!.
The friend responds I think you're an idiot..
Carson responds But she's in band class, band kids play instruments!.
The friend responds No one thinks band geeks are cool, not even band geeks, and besides everyone has to take band class at some point in the year so that doesn't even mean anything..