EVENT: The spot of the future Poets House, at Two River Terrace in Battery Park City, hosts an outdoor evening extravaganza. Show up early for a walking tour of the area, featuring an introduction to some of its literary and artistic niches. After that, bunker down for readings from Cornelius Eady, Matthea Harvey, Hettie Jones, Li-Young Lee, and Kay Ryan, and a musical performances by Jill Sobule! 7 p.m. // Rockefeller Park, Battery Park City......