我不是一个矜持的女孩子
[wŏ bù shì yī gè jīn chí de nǚ hái zi]
'I am not a reserved girl.' The user directly states their personality, indicating that they are open-minded, free-thinking, and outgoing in terms of attitude and actions, contrary to conventional restraint expected in traditional culture, showing self-respect for personal style and freedom.