"That's because I'm not a Nott," Al informed him, his mind rather entertained by the paradox of not-Notts for a while. "I am an Al and I borrowed it for the time being. Er, do I know you?" Should I know you? Al's memory on faces wasn't... perfected to its fullest.
He leaned against another tree, a respectable few steps away and proceeded to claim it as his own, by supporting it with his shoulders.