Q: How do I ask someone for their phone number?
A: Asking for someone's phone number can be intimidating! But here's a trick: people will think you are confident if you appear confident. Stand up straight, shoulders back, and head held high.
Start your conversation with the other person casually. If you need more confidence, you can find an excuse to talk (ask for help, give a compliment, ask for advice). Resist the urge to just walk up to someone and ask them for their number. This can be off-putting for some people.
The best time to ask for someone's number is during a high point in the conversation, like after you shared a good laugh or made a special connection.
Tell the person you've got to go, but that "we should exchange numbers so that we can talk more later."
Getting a number should be done at the end of the conversation, not in the middle.
After you get the number, call it so that they have yours, too (and you can make sure it's not a fake). Save the name and put a note in your phone about the person and the conversation you had as soon as you can so you remember who they are.
Send a text later, telling them it was nice meeting them and that you'll be in touch soon.