Human Interest Caught in the Act! Plus: Rihanna does lunch (in sweats!), Michael Cera and more sightings By People Staff Published on February 12, 2008 06:00 AM Share Tweet Pin Email Photo: GABO/Bauer Griffin • A casual Jessica Alba, browsing magazines with fiancé Cash Warren at a Whole Foods Market in Beverly Hills. The actress, who is expecting, stocked up on Newman’s Own Old Fashioned Lemonade and Odwalla juices and even sampled one while waiting to check out. • Rihanna, lunching at L.A.’s famous Toast with a girlfriend (and a hulking bodyguard who sat reading a magazine!). Dressed in a white T-shirt and grey sweatpants, the singer also sported white sneakers with hot pink laces that matched her nails. • Juno star Michael Cera, enjoying a stroll on a beautiful morning around hip Magazine Street in New Orleans. Dressed in skinny brown pants and a t-shirt, Cera smiled and laughed while his guy friend kept him entertained with stories. • Carmen Electra, hanging out at the hip Manhattan sake bar Suzie Wong. “She looked amazing,” a source tells us. Electra spent the night taking pictures with people and chatting up guests while skipping the cocktails. • Lauren Conrad, helping Stephen Colletti ring in his 22nd birthday at with a bash at Whiskey Blue in Los Angeles. The two arrived together, and were spotted getting close after the birthday guy blew out his candles. The pair’s on-again status isn’t too surprising, friends say. “They’ve always been good friends. They’ve always hung out and talked, ever since I’ve known them, so it is nothing surprising to me,” Audrina Patridge recently told us. •Tom Brady, shopping alone at Whole Foods in Los Angeles with his environmentally friendly Whole Foods tote bag in tow. Before paying with a credit card, he took a photo with a store employee (she bags groceries) before making his way out. •Dane Cook, ordering burgers to go with his girlfriend at a Fatburger in L.A. According to an onlooker, the funnyman started munching away in his Bentley. • By K.C. BAKER, JENNIFER GARCIA, MAUREEN HARRINGTON, ALYSSA SHELASKY and ABBY STERN Monday’s Couples Watch >