Alia Bhatt and Varun Dhawan are awaiting audience response on their romcom Humpty Sharma Ki Dulhania today. We think that the viewers will just love the jodi and Karan Johar agrees with us. br Karan Johar has participated in various promotional activities for the film not only because he is producing Humpty...but also because he bears special love for Alia and Varun since their debut film. br But we were surprised to see Arjun Kapoor and Siddarth Malhotra flashing his ever-charming smile in this picture.