"Some of my films are challenges, and some are safe bets. With KLPD, I wanted to step out of my comfort zone. I knew it might not work and people might laugh at me, but I was ready for it," the 36-year-old told.
In 'KLPD', releasing Friday, Vivek plays a Delhi guy and says that it was not easy.
"The whole character was totally new for me. I have never played such a role before. He checks out girls, flirts with them. I had never done all this. Even in my college days I had not been like this. In Mumbai, we are a little more polished," he said.
"I had to learn all this, I had to go to the Delhi University. I spent time with the hostel boys. I learned their whole vocabulary and the way they talk," he added.