The Hogwarts staff are already seated when you enter the feast. Their traditional place is at a long table on a raised dais at the back of the Great Hall, with the usual Hogwarts crest hanging behind them and looking particularly nice tonight.

Feel free to come up and give your greetings to the School staff after the Headmistress has given her traditional speech. Remember your manners, children. Your professors like to have a quiet dinner too.