Bingo

Bingo starts of with a card with a grid layout which typically displays 15 random numbers.  You can improve the chances of winning by purchasing several cards, but you have to be fast.

Random numbers are generated either by an electronic number generator, some kind of mechanical device which presents random balls to the caller, or by the caller picking numbers out of a bag.

The numbers are called out by the Caller and the game begins when the caller says "Eyes down".

As the random number is generated the caller will announce the number - if the number appears on any of your cards then you mark it, usually with a 'dabber' (felt tip pen).  If you don't have that number you wait for the next number to be announced.

• Line - when you have marked off a horizontal line of 5 numbers
• 2 lines - as above but with two lines
• House - when you have marked off every number on your card

You announce your win to the house by shouting either "Line" or "House" as appropriate.  An official member of staff will then check your card to ensure no mistakes have been made and you have genuinely won.