Ryan Turgeon/Splash News Online
09/08/2011 AT 10:00 AM EDT
had a good view of the action while checking out the U.S. Open
in Queens, N.Y. The Gossip Girl star
, who was at the sporting event with his brother, watched from the Lacoste suite and seemed "very into the tennis," an observer tells us. He also sipped some Earl Grey tea and ate fried chicken while watching the match. Before leaving, Westwick made sure to pick up a polo shirt in every color from the Lacoste boutique, and he even walked out sporting a pink one.