[1] Players score points by spotting pub signs: the score is equal to the total number of physical legs belonging to the people or animals in the pub's name.
When one is found he gets a run (point) for each physical leg possessed by the subject of the title of the pub.
Thus "The Jolly Sailor", a biped, gets 2 points whilst "The White Horse", a quadruped, gets 4.
These disputes can be resolved by mutual agreement as they arise but players may prefer to agree house rules in advance.
One variation on this game scores 'runs' based on car number plates.
Finally, it could also simply be used as a convenient way to declare a winner, especially if one was, anyway, having a pub lunch.
Alice and Bob play the game using the basic version and handling plurals using method (1).