小靓妹是我但我人小心不小
[xiăo jìng mèi shì wŏ dàn wŏ rén xiăo xīn bù xiăo]
Translating to 'Cute girl is me, but I may look young/ small but my heart is big.' This expresses the user sees themselves as cute with a mature, possibly strong personality or ambitions despite a potentially youthful appearance.