Leonardo DiCaprio Dances to Kanye West in West Hollywood
01/17/2013 AT 02:00 PM EST
Alongside best friend Lukas Haas, DiCaprio visited West Hollywood hot spot Bootsy Bellows on Tuesday night.
Donning a newsboy hat, DiCaprio mingled with club promoters, while Haas did "his own thing," an onlooker tells PEOPLE. "Leo hung back and sat on top of the banquette. He was getting a ton of attention from the ladies."
The usually quiet DiCaprio was "upbeat" and "even danced and clapped along" as music from Jay-Z and Kanye West played. And when the actor was approached by other clubgoers, he was "very gracious and chatted with them for a few minutes," the source adds.
Once the lights came on, the two friends reconvened to figure out their plans for the rest of the night.