What is purpose of marriage in Islam ? To my understanding, to save faith and prevent the believer from evil gaze at other women who are out of his blood relatives. In view of this concept, covering full face while walking with husband in public places doesn't make sense and doesn't help gaining the purpose of marriage. In such condition, it is quite difficult for the husband to control his gaze when the wife covers her face with the piece of cloth.
So, I am of the view that wife should not cover her face rather bare face with slight make-up on her face while she is with her husband outside the house so he enjoys the beauty of her face and not need to turn his gaze there and there. What do you say?