Ways to be not a good polite considerate air traveler.
Take advantage of your aisle seat to extend your leg all the way out into the aisle and then wave your enormous dirty bare foot with its smashed toenails up and down up and down up and down.
Take advantage of your aisle seat to cross your right leg over your left knee so that your enormous dirty bare foot with its smashed toenails is almost in the lap of the politely restrained atheist woman in the other aisle seat, and then keep inching it closer and closer.
Put your enormous dirty bare foot with its smashed toenails on your knee and clean it out between the toes, carefully dropping whatever you find onto the aisle floor.
Put your enormous dirty bare foot with its smashed toenails back into its sandal for awhile and stick it out into the aisle in order to stamp it heavily at irregular intervals.
Seize your enormous dirty bare foot with its smashed toenails and weave your fingers into the toes as if you were holding hands with your own foot.
Do all these things without ceasing for 5 hours on a completely full flight.