Keep a low profile — stop always trying to show off.
Tips
usage
Usually mildly negative — implies vanity or grandstanding. The neutral synonym is 出风头, written with 风 (wind) instead of 锋 (point of a blade); both are accepted but 出风头 is more common in mainland usage.
memory
锋头 = the point/edge of a blade. To 'stick out the blade-point' is to make sure you're the one being noticed.
