Related Clues:

• They're put out at times
• Negotiating tactics
• Antennae
• Antennae or cautious proposals
• They're touchy
• They're not insensitive to the tentative approaches
• Tentative suggestions put out by some animals?
• Butterfly's antennae
• Tentative exploration
• Such as antennae
• Opinion checks
• Antennae and tentacles