By moving both the seat and the lid into up and down position, checking manually for blockages, flushing water twice, and demanding to be shown latest annual in

By moving both the seat and the lid into up and down position, checking manually for blockages, flushing water twice, and demanding to be shown latest annual inspection certificate. And after following such a procedure pretending that the toilet seat is an airplane cockpit won't increase your embarrassment. Yay!