it is definitely Jessica because her smile makes আপনি feel happy every time আপনি look at her আপনি get happy no matter what happens she makes আপনি happy that what i can say about her smile because what i feel about her cant say in words i প্রণয় heeeeeeeeeeeer
Of course it's Tiffany!! She is known as the EYE-SMILE PRINCESS! No one can ever be like her. All the members voted her as the best-smile member. I saw an interview before and they ব্যক্ত so. Taeyeon's smile is nice too!!