一笑动君心一枕水眸剪
[yī xiào dòng jūn xīn yī zhĕn shuĭ móu jiăn]
It implies 'A smile can touch your heart, like scissors that cut the night away'. Here the water-moist eyes are described beautifully to emphasize how one's charming smile and gentle gaze stir the opposite heart. This carries a romantic nuance.