笑你太可爱笑我太天真
[xiào nĭ tài kĕ ài xiào wŏ tài tiān zhēn]
'Xiao Ni Tai Ke Ai Xiao Wo Tai Tian Zhen', or 'Laughing at how cute you are and laughing at how naive I am', implies humorously acknowledging cuteness in others while seeing oneself as too innocent or naive, could also suggest self-deprecating wit.