Grandpa Ho's warm-up

Grandpa Ho, a Vietnamese man in his 80s who breakdances: small and wiry, wispy long white goatee and eyebrows, bald on top, big grin with a gold tooth, wearing a shiny retro purple and lime tracksuit, white high-top sneakers. Phone at arm's length in a park at sunrise, a crowd of pigeons lined up behind him in rows doing the same stretches, saying “Same time tomorrow, team.”