What is he asked for my number?

When someone asks for your number, it typically means that they are interested in getting to know you better or maintaining contact with you. This could be for a variety of reasons, such as romantic interest, friendship, professional networking, or simply wanting to hang out. Depending on the situation and context, it might be appropriate to either give your number or politely decline. It's important to trust your instincts and only share your contact information with people who you feel comfortable interacting with.