Possible Clues:

• Tender place in the heart
• Affectionate feeling shown by drunkard embracing female spy
• Vulnerable position
• Kindly feeling not hard to place
• It's not hard to detect an affectionate feeling
• Feeling of affection towards person - not hard
• Point frequently and observe this weakness
• Point of vulnerability
• Fondness of drunks, one for gulping loudly, one for sipping quietly?
• Sentimental regard for quiet location