Also, get a burner number for when you do give out the number. I briefly went on some dates at the beginning of the year (no idea why) and had to burn several numbers because of the creeps out there. Also don't give your real name or let them know where you live until after you've gone out long enough to know they are not insane. Online dating is scammers, pervs and projects. In my short tenure I had some inappropriate conduct thrown at me that was quite shocking. Much better off meeting someone in real life.