Ryan Turgeon/Splash News Online
04/14/2011 AT 12:00 PM EDT
was partying with a guy friend at Trousdale
in L.A., but the Gossip Girl
star's attention was focused on female clubgoers – and they were most definitely watching him, too! At one point, the British actor invited a group of ladies to sit down and join him, and when they did, he ordered a round of shots. According to an onlooker, Westwick was charming, making the female clubgoers blush as she showered them with his attention – and drinks.