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In an ideal situation, the client and the hairstylist make a wonderful team: the hairstylist offers an idea and the client agrees if the professional arguments provided are far more convincing than the latter's. But this ideal case ir rarely seen. Most of the times, the client is not able to give a detailed description of what she's looking for and the hairstylist does not try to understand her demandings, so the result consists of a two-sided dissatisfaction.
Therefore this question is certainly pertinent:
How can I correctly choose the hairdresser?