Final answer:
When standing to work on a haircut, you should not lean excessively, keep feet close together, or distribute weight unevenly. Good posture and balance are important.
Step-by-step explanation:
When standing to work on a haircut, there are certain things you should not do:
Maintaining good posture and avoiding these undesirable habits will help you maintain balance and reduce the risk of strain or injury while working on a haircut.