Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I wouldnt say kidding around exactly. It is a salesman's tactic to get people to do what they say they will do, to pay a debt or follow through on a commitment,etc.I don't think Trump was being serious when he asked people to promise to vote for him. He was kidding around, working up the crowd.