Actor Kartik Aaryan has reacted to Ranveer Singh imitating him on Karan Johar's 'Koffee With Karan 7'. He said that he hasn't seen the episode yet, but has watched the clip of Ranveer. "He is really watching my videos. He was good," Kartik said, adding, "But, I actually say 'thank you' and not just mime it."