I asked a boy about his birthday, but he didn't reply to my message and praised me. Why?

Are you sister paper? Maybe you are too direct, and most boys don't care too much about the direct girl, so when you encounter such a situation of ignoring you, you should stop caring about him, otherwise the more you care about him, the more you ignore you. . . There are also praises for you. Maybe when he looked at the space, he didn't see who sent it and what it was, so he praised it like a screen. This is just a part of his daily life!