你的眼睛会笑但不是为我
[nĭ de yăn jīng huì xiào dàn bù shì wéi wŏ]
The netizen feels that the person he/she likes is cheerful or friendly in a superficial sense, showing laughter and friendliness. However, they believe this attitude is not given especially for them. There's admiration as well as melancholy.