The final Hint ... spolers :D

If it were any other movie industry, making a Mongolian/chinese like face would have been classified as racist... not once.. but twice in the movie...!! Guess it was essential for them to do the face so that he could do it at the end and ruin a perfectly emotional moment and make it comical :P
He should have just said his role model was Donnie Yen from IP Man... coz that's where they probably got the whole hitting the muscles thing :P