The best way to weed out booty-calls from real romance is to be honest and upfront about your intentions. Let the other person know what you're looking for so that they can decide whether or not they want to pursue a relationship with you. Also, it's important to avoid hookup sites that are known for being used primarily for casual encounters. Instead, opt for sites that cater specifically towards those seeking long-term relationships or even marriage. Doing this will help you find someone who is truly interested in a meaningful connection rather than just looking for a quick fling.