你的微笑已经非常卡哇伊
[nĭ de wēi xiào yĭ jīng fēi cháng kă wā yī]
Your smile looks super cute. In recent years, with Japanese popular culture influencing, 'kawaii', a Japanese word meaning 'cute', becomes widely used by Asian youngsters. Through these words, the holder probably shows adoration or fondness.