Blind man's buff
From Tardis Wiki, the free Doctor Who reference
Blind man's buff was a children's game in which one person was blindfolded and had to find the other participants. The Eleventh Doctor, who was tricked into playing the game by Artie and Angie Maitland so that they could escape their house for the cinema, was "pretty sure it was in the rules" that they had to tell him whether he was "getting warm". (TV: The Name of the Doctor) In a more dangerous version of the game, the clowns Clara and Joey were used by the Celestial Toymaker to play the game against Steven Taylor and Dodo Chaplet. (TV: The Celestial Toymaker)