I can understand things like acting/professionalism. But what about realism. I cant imagine even his wife being so turned on as Shruti appears to in the picture. What is the basis of those expressions? He's not attractive from any angle. So does she imagine her current boyfriend instead of him?
Have you seen "When Harry Met Sally". The infamous deli scene. Meg Ryan faked it for hours for that scene. That's called acting.
When movie stars show affection, attraction, sexual interest, romantic interest in a movie – they are not actually feeling that towards the person – they are "acting". Why single out the love scenes – Do people picture their loved ones dead when they cry over a loved one in the movie? Do people who play rapists or murderers in movies actually have to imagine being sadistic beasts to do a role – that's just twisted? It is all acting. It is not real. The actor is merely portraying a character in a script.