Hrithik Roshan is a big fan of none other than Aamir Khan. He is very much impressed by Aamir's performance too. "He is a senior and his approach has been consistently inspiring to actors like me. He takes his characters far more seriously that I do. I base my work more on instinct and less on study. I also have an impetuous to have fun with my work at times. Unless, of course, it is a film like 'Koi Mil Gaya'. But Aamir is absolutely fantastic!" explains Hrithik.