are they still doing those? pretty sure the Zilker potlucks stopped a few years back, but you can check on the first Sunday of the month, down by the Sunken Garden (across the Springs from the Pool & Playground). If you want to find Rainbow folks though, it might be a better bet to check up at Ruta Maya on S Congress.
Hee, hee; Leslie is a character. The radio stations talk about him; he's the mascot for some 'Keep Austin Weird' run. we've known Leslie for a long time. Have you met Jennifer Gale yet?