Grab a passing phrase and make it melodic. Perhaps a nonsensical phrase (number friend seven), perhaps a coherent phrase (where is the bus). Give to the phrase an upward lilt along with a concluding drop—like arpeggios practiced successively through every key. Repeat the little tune you’ve made until, slowly, others take notice. They may stand as they notice and listen, they may join in. Sing the song louder and louder, with greater and greater insistence, until it has taken your entire being over. Stand up, wave your arms akimbo, and run in small circles and figure eights as you repeat the singing of your phrase. Spin and sing and spin and sing and spin and sing and spin. Collapse.