Just outside the door to Professor Williamson's office are two curving wooden benches, one painted green, and one painted silver. Knock if you wish to speak to him and then have a seat.
They're quite comfortable, even if they are incredibly weathered and might not match
your House's colors.
ooc: After you knock, I will post here admitting you or asking you to wait, and THEN you may post in the office thread. While you wait, feel free to create your own roleplay or gab with whoever else happens to be there, so long as you aren't TOO excessively chatty. Thanks for being patient! ^___^