What should be avoided when handling a client's hair to ensure a good haircut?

Using outdated tools when performing a haircut is crucial to avoid because these tools can significantly affect the quality and outcome of the haircut. Outdated tools may not provide the precision or effectiveness needed to create the desired style, leading to an unsatisfactory result. For instance, dull scissors can create split ends, uneven cuts, or cause damage to the hair, while older clippers may not operate smoothly, resulting in uneven length or poor blending techniques.

On the other hand, taking notes on client preferences aids in understanding their desires and ensuring their needs are met for future visits. Following the natural hair growth pattern is essential for creating a flattering cut that suits the client's natural style, while engaging in a friendly conversation helps in building rapport and making the client feel comfortable during the haircut process.