Robert Pattinson stepped out with friends to see The Black Keys perform at The Sayers Club in Hollywood on Sunday.
Dressed casually in a blue button-down, short-sleeved shirt and a backwards baseball cap, Pattinson arrived just before the show started at 9 p.m.
Despite the drama surrounding his relationship with Twilight costar Kristen Stewart, Pattinson couldn't have looked happier as he chatted with male pals including The Master actor Rami Malek, an onlooker tells PEOPLE.
"He had a smile plastered across his face during the entire show," the source adds. "He bobbed his head to almost every song. When he wasn't rocking out he sipped on beer and spent time texting."
After the show ended at 10 p.m., the Cosmopolis star stayed at the club, enjoying beers and posed for photos with 98.7 deejay Kennedy.
"Pattinson seemed amused by her and was laughing a lot throughout their conversation," the source says.
– Jennifer Garcia
A slam dunk for Twilight!
Robert Pattinson stepped out Sunday night to attend Emmy host Jimmy Kimmel's after party at Soho House in Los Angeles.
Joined by a male friend, Pattinson was dressed casually in a baseball cap and jacket, but every girl in the room was "trying to get his attention," an onlooker tells PEOPLE.
Inside the star studded event, guests sipped on Don Julio margaritas and Bulleit Bourbon Old Fashioned cocktails and snacked on sliders from Umami Burger.
Samantha Ronson deejayed a set full of current hits and classic rock while nominees, winners and guests including Breaking Bad's Aaron Paul and Bryan Cranston, Ellen DeGeneres and Portia De Rossi, Downton Abbey's Michelle Dockery, L.A. Laker Kobe Bryant and more enjoyed the evening.
"At one point Rob approached Kobe to say hi and tell him he was a big fan," the source adds. "Kobe said the same right back to him!"
– Jennifer Garcia
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Robert Pattinson put on a happy face Monday night, at the afterparty following the New York City premiere of Cosmopolis.
Making his way to the PH-D Rooftop Lounge at Manhattan's Dream Downtown hotel at around 10 p.m., the heartbroken actor – who was recently cheated on by girlfriend Kristen Stewart – sipped a bottle of beer and took regular puffs from an electronic cigarette, according to an onlooker.
"He was very charismatic, all smiles, looking very relaxed and hugging all who stopped by to say hi," the insider tells PEOPLE about Pattinson, who left around midnight. "The general crowd gravitated towards his table, but he was shielded by security. He was surrounded by women and the movie's cast."
Adds the source, "The whole room was watching him, and he looked genuinely at ease and comfortable the whole time."
Other guests at the fete included Judah Friedlander, Shia LaBeouf and the film's costar Paul Giamatti, who stayed "away from the cast, looking over at Rob, and looked like he felt sorry for him," the source says.
Earlier in the day, Pattinson did his best at cracking jokes with Jon Stewart during a taping of The Daily Show.
– Kristin Boehm
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