Possible Clues:

• Act mannerly
• Be well-behaved
• Behave
• Be watchfully accurate and punctilious (4,4,2,3,2)
• Not be nosy
• Be polite, be aware of your place initially, then employ abrasive questions (4,4,2,3,2)
• To avoid offence, head person's getting weakest and strongest on board (4,4,2,3,2)
• Behave, letter-perfectly
• Behave correctly - look after own pawns and queens (4,4,2,3,2)