When exchanging cell phone numbers with a potential date, it's important to take precautions to protect your privacy. Make sure you are comfortable with the person before giving out your number and consider exchanging numbers through a secure messaging app such as Signal or WhatsApp, where you can control who has access to your contact information. If you do choose to exchange numbers over text, be mindful of the information that you share and avoid sending any personally identifiable data like address or birthdate.