if{open}: Continuing on with Retro Row’s so-called rebirth, {open} hosts its fourth-anniversary party with Dublab and cupcakes. The event will also kick off the bookstore’s “if{open}” exhibit, in which 25 artists from around the world imagine and re-imagine the word “open.” 7pm. Free.
{OPEN} 2226 E Fourth St, Long Beach 90814. 562.499.6736; thestoryofopen.com.

Tree Planting: Wrigley residents are taking to the streets to plant 150 trees as part of its “Wrigley Is Going Green” campaign. Volunteers happily accepted; shovels, food and drink provided. 9am.
INTERSECTION OF Daisy Ave and Hill St, Long Beach 90806. wrigleyisgoinggreen [at] hotmail [dot] com for more info.

Autumn Festival: Get a glimpse of the fall before we turn the clocks back at the Aquarium’s Autumn Festival, an exploration of the arts, cuisine, cultures and marine environments of Asia. 9am-5pm.
AQUARIUM OF THE PACIFIC 100 Aquarium Way, Long Beach 90802. 562.590.3100; aquariumofpacific.org.

Gray Panthers: The city’s fiercest political seniors gather for another meeting of the Gray Panthers. 10:30am.
SENIOR CENTER 1159 E Fourth St, Rm 210, Long Beach 90802. Call 562.438.2748 for more info.

Lakers: Boo Kobe Bryant as the Lakers host the Utah Jazz. 6:30pm. $10-2,200.
STAPLES CENTER 1111 S Figueroa, Los Angeles 90015. 213.742.7340; nba.com/lakers.

Tags: Aquarium of the Pacific, gray panthers, kobe bryant, Lakers, retro row, wrigley, {open}