Deepika, who gave four back to back hits including Yeh Jawaani Hai Deewani, Chennai Express andRam-leela last year, has always considered her fans to be the reason behind her success, and she makes it a point to express her gratitude in her own small ways, said a source. 

"This Facebook chat seems to be yet another token of appreciation to her fans all over the world - her way of acknowledging that her fans mean the world to her," the source added.