New Yorkers, please keep your feet off the seat.

That’s one friendly reminder New York City bus riders will see in advertisements sponsored by the Metropolitan Transportation Authority starting Monday. It’s part of a courtesy campaign that began underground on ads throughout city subway cars.

The tips include what some might call common sense.

Step aside to let others off first. Take your pack off your back. And don’t clip your nails on the bus, please.

One ad says: “Offer your seat to an elderly, disabled, or pregnant person. Not only is it the right thing to do, but you’ll make your grandmother proud.”

The MTA says it’s trying to address common complaints from riders. More than 2.5 million people ride the city’s buses every day.

(AP)