Related Clues:

• Bug, in a way
• It may be a peck
• Salute face to face
• Lightly apply
• Meeting of the mouths
• Gentle knock
• ''Pardon me . . .'' gesture
• Blot away, as a tear
• It's a faucet in the US
• Some dance back at the piano
• Knock lightly
• Tavern spigot
• Apply with a cotton ball, say
• 'Farewell, farewell! One ___ and I'll descend': Romeo
• Keg opener