I don't need to be seated, but when they seat you, the staff already knows that you there. If you just sit at a table, it often happens that they don't even not

I don't need to be seated, but when they seat you, the staff already knows that you there. If you just sit at a table, it often happens that they don't even notice you. Especially if they didn't clean the table yet and it looks like you've just finished.