I don't think smiling means 'catch me'. Wouldn't you worry if something smiled at you for the entire day? Week? Month, even?

[ clicking his tongue against the roof of his mouth, he looks at Rindou with a gentle, sloping frown. not one out of anger or disappointment, but mostly contemplative. with thin lips, he bends a little lower. ]

Besides, I don't want to take a bite out of a lemon. Too sour.