Sobriety seems to be a sometimes thing for Lindsay Lohan.
The "I Know Who Killed Me" star knocked back "at least two" vodka cocktails Friday night at the Beatrice Inn and later snapped at snappers trying to take her picture, according to our spies.
Lohan, who checked out of a Utah rehab center in October, downed the drinks while partying with ex-boyfriend Stavros Niarchos and MTV reality "star" Brody Jenner, sources tell us.
"Lindsay is learning how to work through her addictions and, once in a while, she chooses to have a cocktail," says a friend, attempting to explain. "People overexaggerate her behavior when in fact on Friday night, many people commented to her on how composed she was."
Lindsay's last reported slip was on New Year's Eve, when she was caught on video swigging Champagne on the Italian isle of Capri.
One source contends that drinks were showing on Linds on Friday. Confronted by paparazzi at the Beatrice, "she started going berserk," claims a witness. "She didn't want them taking shots of her with Brody."
"[If she got in a fight,] that would be shocking," argues her rep. "Most likely, there were so many photographers and she probably couldn't get to her car. Lindsay is always polite, but sometimes doesn't want to have her photo taken."
Some blogs claimed that Lohan sat coquettishly on Jenner's lap inside the Village hot spot. "That's completely false," says one pal. "She was with Stavros. Brody was just there, but she was all over Stavros."
Rumors of a Lohan-Jenner hookup got so heated Monday that Jenner issued a statement.
"We were hanging out as friends and nothing happened," Jenner said. "We weren't ‘all over' each other, and we definitely weren't making out. I am dating and really happy with Cora [Skinner, a 22-year-old model]."
Saturday night, Lohan turned up with an entourage at the Waverly Inn for dinner, where she dined tables away from Cameron Diaz, Diddy and Mariska Hargitay. Anyone with information about her beverages or boyfriends, call or e-mail.
