A reader asks: How long should I wait to call 
a woman after she’s given me 
her number?

Don’t play games. Follow up that day or the next with an SMS: “Great chatting/meeting/bumping into you. Would be cool to get together sometime. Have a great day. [Name here]”. You should be able to gauge her interest by the response, then follow up with a call a day or two later. Have a plan – drinks, 
dinner, movie. Just an FYI: generally, I like to know by Wednesday what I’m doing on Friday so that I have something to look forward to, so give her a day 
or two’s notice. Two or three brush-offs mean she’s not interested.