When it comes to finding love, there are certain truths that seem so irrefutable that any single person would be a fool not to follow them. Maybe you’re a firm believer that you can tell within seconds if you’re attracted to someone. Or, maybe you adhere to the idea that a first kiss says it all: if you feel fireworks, your date’s a keeper; if it bombs, cut your losses. While these romantic maxims have their fans, experts insist that these laws no longer hold true in today’s dating world. In short, many rules single people follow need a little revamping. To that end, we’ve consulted authorities in the field to bring you the most up-to-date tactics for finding someone you’ll click with romantically.

Old rule: You can tell if you’re truly attracted to someone in three seconds
New rule: You can’t tell if you’re truly attracted to someone until you’ve had three dates
“Love at first sight” is a familiar romantic notion. And in our increasingly fast-paced world, it’s darn convenient to think you can tell if you click with someone that quickly. But experts recommend cultivating a bit more patience, sticking to a three-date minimum to know for sure whether you’re a match (or not). The reason: people are a bundle of nerves on date #1, begin to unwind on date #2, but only by date #3 can people truly relax and maybe build some rapport. And while sparks early on are nice and all, they say nothing about someone’s long-term potential. “An important part of a compatible relationship is ensuring that each partner’s values coincide — and to learn that takes time, discussion, observation, and interpersonal interaction, not an initial impression based on superficial cues,” says James C. Piers, Ph.D., professor and program director of social work at Hope College in Holland, MI. So, don’t write someone off (or fall head over heels) until you’ve done your due diligence.