A Chinese Phrase for Asking for someone's phone number: "可以给我你的手机号吗？"

"可以给我你的手机号吗？" means "Could I have your phone number?" and it's the basic Chinese expression used for asking for someone's phone number. It's very handy for phone calls and online communication. To answer, you can say something like "当然，我写给你。" (Of course, I'll write it down for you). You can keep the conversation going by reacting with something like "谢谢，我马上存下来。" (Thanks, I'll save it right away).