It is not difficult to guess the reasons why so many people love K-pop boy group EXO's member D.O.

This is due to the fact that he has countless charms from his good looks, killer smile, sweet personality to talented performing as well as acting skills. Everything that D.O. does flutter the hearts of millions of fans around the globe, and it seems they might now have another thing they could die for; his adorable habit.

Recently, it was discovered that he had a habit of looking down and shaking his head sideways with a smile when he gets shy.It turns out most of the time when he does this are the times he gets complimented by others.

Whenever he gets too shy, his face turns into a ball of shyness and it is possibly the cutest moment ever.

Make sure you take your time to view these images of D.O.'s cute moments below!(Lee Narin, Credit= Online Community, 'weareoneEXO' Facebook)

(SBS Star)