我没对你笑你就别和我闹
[wŏ méi duì nĭ xiào nĭ jiù bié hé wŏ nào]
A phrase expressing aloofness or detachment, which could be understood as 'if I don't smile at you, then don't try to bother me'. It portrays a boundary set on social engagement, signifying that unless invited warmly via a smile, attempts to start playfulness will likely be rebuffed.