I am not sure if anyone noticed this contrast in scenes between the time Yash helps Aarti with her Scooter and the time he helps her open her suitcase. In the first instance he stands by her waiting for her to ask him for help but gets inpatient when she does not moves her arm and starts the scooter. Then waits for her as if to hear a thanks. Aarti does not thank him and he walks away. In the scene with the suitcase he does the same thing walks upto her and waits this time Aarti talks and also getsures that she has trouble opening the suitcase Yash stretches his hand and when Aarti mistakes it for the asking of the Kangan stops her takes the key and opens the door this time she turns around and thanks him. I think by his expressions he was surprised whe asks him for help and also when she thanks him.
I thought this contrast was so beautifully depicted.the PV writers and directors have thought every scene and tie them all together. Hats off to them.