Mumbai: Seems ‘careless' Ranbir Kapoor has learnt a lesson from his past mistake and turned smarty. 

After spilling the secret about saving the number of his girlfriends under the pseudonym Low Battery, he has changed his tactic. A source that had access to his cell phone revealed that Ranbir has nicknames for the girls on his phone.

They go by the names 'Blondie', 'Dusky', 'Vixen', etc. The source says, "He's a young guy and loves to have his share of fun. Now that he's not committed to anyone, he's on a roll. All his friends keep making fun of him but RK refuses to change his wicked ways."

May be ‘wicked’ Ranbir is what attracts the hotties to him. So Ranbeer, what names should we look for Sonam, Deepika and Katrina in your cell? Sweet, dimpled and kool?