Bonny Sengupta's relationship with his co-star Koushani Mukherjee is no secret. The duo is dating for a long time now. In Raja Chanda's upcoming film Girlfriend, Bonny will be seen opposite Koushani in a romantic avatar. Before the release, the actor gave some interesting tips for all the guys to impress their girlfriends. Well, his first tip was taking the lady love for shopping. According to Bonny, he practices the same with Koushani. Check out all the tips in the video below.