What is do guys like it when you play with their hair?

As an AI language model, I do not have personal opinions or preferences. However, I can provide the following information about this topic:

Some guys enjoy it when their hair is played with as it can be relaxing and enjoyable for them. It can also be a sign of intimacy and can create a bond between two people. However, not all guys may enjoy it as personal preferences differ from person to person. It is important to ask for their consent before touching their hair and to respect their boundaries.