I sing, and he stops being fractious and sits and listens. most of the time.
When we are out for a walk he gets tired of being in the stroller for too long, so I start singing anything that pops into my head, mostly English and French Canadian folksongs. There aren't many people out walking at 1pm, and I can see them coming a mile away, so I can sing to my heart's content (yes, i realize it is mostly for me, but I get on a roll).
So I was singing "Song for the Mira" at full voice, when a man suddenly appeared right in front of me. Oh my god! Did he hear me? Quick, say something to the baby so he knows I wasn't singing to myself! Where did he come from? Was I in tune? Why is he turning around? I want to pretend this didn't happen! Oh god, he smiled at me! He so totally heard me! Argh!
I kept on walking past where the man had appeared, and realized that he was installing a pool in someone's backyard, and they were using the trail that runs behind the houses to move in some equipment.
If only my super powers extended to an invisibility cloak, or at least a sound bubble.
PS I totally started singing again a block later. I mean geez, I had to finish the song!