If the person you are talking to doesn't appear to be listening, be patient. It may simply be that he has a small piece of fluff in his ear.
A. A. MilnePiglet sidled up to Pooh from behind. "Pooh?" he whispered. "Yes, Piglet?" "Nothing," said Piglet, taking Pooh's hand. "I just wanted to be sure of you.
A. A. Milne