就闹就任性乖乖别闹腾
[jiù nào jiù rèn xìng guāi guāi bié nào téng]
This internet name 'Behave capriciously, but do not make a fuss' implies a somewhat naughty and playful personality. The person might want to have some tantrums or act out at times but is asking others not to react to it or to understand such childish behaviors.