This evening I was talking on the phone (in Japanese), and I noticed that my daughter was pointing at me and laughing. When I was finished I asked her what she thought was so funny.
"You looked like ji-chan (grandpa) while you were talking. Every time you said "thank you" you bowed. Why do you bow when you're talking on the phone!? It looks really funny!"
"I was NOT bowing on the telephone!"
"Yes you were. I saw it. You did it 4 times!"