Late edit: The video embedded below was removed, here's a link to a working video of Tipsarevic imitating Djokovic.
Janko Tipsarevic impersonating Novak Djokovic during the Monte Carlo player party. The video's description: "I had to do it...even thou he is not like this...I had to do it"
The funny thing is, after watching Novak's interviews and videos and seeing some pictures, I could really feel that I know the gestures he's making fun of. Being a fan is so much better with internet all around :D