Even if men don't advertise which celebrity hairstyle they are copying or that they use styling products, they are copying and they do use the products, just like women. Men tend to use products such as mouse and gel, although newer hair products such as putty are beginning to make their way into more and more men's hair styling regimen.
So, it is very important to choose the right type of hairstyle after making proper research. If you are young and trendy, you might also like to experiment new hairstyles. However, try to get a computerized image of yours with that hairstyle before trying it. And try to take suggestions from friends and relatives as they might give a good idea on whether the particular hairstyle would suit you or not.