Robert Pattinson in 'Really Good Mood' After Kristen Stewart Split
05/21/2013 AT 04:45 PM EDT
The actor was "all smiles" when he stepped out at Teddy's at the Roosevelt Hotel in Hollywood, an onlooker tells PEOPLE.
Arriving with a group of friends just after 1 a.m., Pattinson – who wore jeans, a white T-shirt, a black leather jacket and a backwards red Indiana Hoosiers baseball cap – headed to the back of the club to relax at a corner table.
"He sat on the couch at his table and sipped on multiple vodka cocktails throughout the evening," the source adds. "You'd never know he had just gone through a breakup. He was smiling the entire night and was in a really good mood. There wasn't a trace of sadness on his face."
While he was tucked away in the corner of the club, only a handful of patrons recognized him. "He spent most of the night chatting with a brunette," the source says. "There was definitely some flirting going on but it was all just talking, there was nothing physical going on between them and they never touched each other."
– Melody Chiu