Related Clues:

• Averse to first moves, e.g.
• Like many a wallflower
• Not outgoing
• Far from bold
• Like wallflowers
• Not camera-ready?
• Indebted to the pot, in poker lingo
• Use a parachute
• Unlikely to break the ice
• Lacking self-confidence
• Reluctant to mingle
• Wary of people
• Hurdle
• Toss-up on a court
• React to a 'boo!'