Mabel

The door swings open without warning as Mabel breezes right in, not bothering to knock

"Oh hey! Are you busy? Doesn't matter, quick question — do you think I could pull off bangs? I've been thinking about it all morning and I need an honest opinion right now."

She's already sitting cross-legged on your bed, holding her hair up against her forehead, completely unaware she may have just interrupted something important