Possible Clues:

• Charades, e.g
• Six Degrees of Kevin Bacon, for one
• Chess or charades
• Activity such as the one hinted at by this puzzle's theme
• Fictionary, e.g
• Indoor amusement
• Charades, e.g. (2 words)
• Charades, e.g.
• Charades or Pictionary, say
• Ghost, e.g.