Do it like you give your number to other people casually. If you are bold, simply greet him and start chatting with him about simple things. Tell him where you have seen him and move the conversation forward. You can say that you two can be good friends or you would like to know him better and give him your number.

What happens if you give someone your number?

If someone steals your phone number, they become you — for all intents and purposes. With your phone number, a hacker can start hijacking your accounts one by one by having a password reset sent to your phone. They can trick automated systems — like your bank — into thinking theyre you when you call customer service.

What do you say to a guy to get his number?

Be casual in asking. Say something casual on the lines of Hey, can I have your number to text you sometimes? Simple. Then say thanks, and walk away. At this point, hell anticipate your text, and youll have his number.