How often have you muttered the words “How do I know if he/she likes me?” You start asking it when you’re a youngster—when your crush runs away from you at the playground and you wonder how you can steal his heart—to the time during adulthood you’re swiping right on Tinder wondering why that last girl ghosted you.

Relationships are a strange thing, especially when you’re just starting out. We all wish there was a magic way to know whether someone is digging us, or whether they’re just not feeling it instead of going through the motions to learn the hard way.

Luckily, there’s some new research that can help us out. The study, led by University of Dayton associate professor of psychology R. Matthew Montoya, and published in the published in Psychological Bulletin, found that there are many nonverbal behaviors that can be good identifiers into whether someone is into us.

“There is a specific suite of behaviors associated with liking, and this same set of behaviors can be found in cultures from around the world,” Montoya said.

For example, pay attention to the person’s eyes and mouth. If they’re holding eye contact with you and smiling a lot, those are great signs that show their interest. In fact, the study said that these were signs of attraction from all cultures.

Another sign is if the person tends to stay in close proximity to you during the date, initiate conversation with you, and seem to be laughing a lot. Additionally, mimicking of each other’s behaviors and head nodding were also related to liking each other, but more so in Western cultures.

All of these behaviors have one thing in common: They show that we trust someone, or that someone trusts us. “When we like someone, we act in ways to get them to trust us,” Montoya explained. “From this perspective, we engage in these behaviors to increase the degree of overlap, interdependence, and commitment to an agreement.”

While these signs of attraction probably sound a bit obvious, it’s good to know there’s at least some science behind these traits so we can know for certain people who show these behaviors really do like us. The cool thing about this study is that it also found certain other behaviors we typically may associate with attraction to not have any evidence of actual attraction.

For example, when someone flips their hair, lifts their eyebrows, uses gestures, tilts their head, primps their clothes, maintains open body posture or leans in—these actually, surprisingly so, weren’t linked to someone liking someone else.

Another interesting fact? These behaviors all apply for any type of relationship, much beyond just romantic. “Whether we engage in these behaviors has little or nothing to do with romantic desires,” Montoya said. “These behaviors apply when doctors interact with their patients, parents interact with their kids, or when salespeople talk to their customers.”

The more you know, right? What signs do you think show that someone likes you—or on the other hand, doesn’t like you? Did you know that these signs in the study were associated with trust and mutual attraction?