Why do boys add your name to the chat?

Maybe it's his personal preference or habit.

When a man never gives you a nickname or special address, but calls you by your full name, then you should believe in the relationship between you. It is possible that he regards you as a friend, and if he is a lover, he will call you by your full name directly, indicating that this man has a good relationship with you or doesn't love you at all.

If he has you in his heart, you are different to him, so he will definitely give you different nicknames, and he doesn't want to call you by your full name, because that would be very strange.

Another possibility is that boys and girls know each other and have a close relationship, but it doesn't mean there are other relationships, such as familiar colleagues will call each other by their first names.

In the last case, some straight men will call them by their full names, which may be meaningless, just calling them casually, without thinking too much.

Generally speaking, only when you are familiar with each other will you be called by your full name. It depends on your relationship. If you are a colleague, it means respecting you. If you are classmates, it doesn't mean anything. Maybe your relationship is superficial and meaningless. However, a copywriter said, pay attention to your full name is very gentle, so it is still good to be called by your full name.