I guess there are two major kinds of clients coming to barber shop.
Some people want that same haircut done again and again. Might even have a reference picture with them.
The others look for something new. They might not have any idea, or have a picture of a hairdo just in their mind. These will struggle to describe.
Being able to provide a great service for the latter group is what makes a great barber shop.
Are you ready to provide great experience for both kinds of customers approaching your business?