Games with the Acting mechanic require players to use some form of mime or mimicry to communicate with the other players. Charades is probably the poster child for this mechanic, where one member of a team must use non-verbal clues to allow the other members to guess the solution.
Sherlock Holmes Consulting Detective: The Baker Street Irregulars
Be part of Holmes' gang of street children, tackling crime, mystery and a deadly foe.