When calling Bingo, be polite and ask if they can ring the number for you. If they do not have a bingo number, ask if they know of any other games that might be available. If they do not know of any other games, ask if they have any cards. If they have cards, ask if you can borrow one for a few minutes.
Once you have a card, put it in the slot at the front of the machine and wait for your number to be called. When your number is called, make your way to the front of the machine and insert your money. Press the button to start playing and keep track of your score on the display. When you finish playing, return your card to the machine and press the button to end your game.