It’s 1:30 p.m. on Sunday, and I’m wheezing and puffing down Greene Street, trying to catch up with a phalanx of wan, floppy-haired 20-something men competing for $50 and a Party City trophy. We’re racing to the second location of the Timothée Chalamet lookalike competition, which went viral last month after sparse fliers advertising the event started showing up downtown. Despite the lack of detail — a Partiful event advertised the location as “the Washington Square...