Do I want to see them again, and more importantly, do they feel the same? While mind-reading remains impossible, there is one valuable clue that can guide you: body language. Far more revealing than words, it often shows what the other person doesn’t dare to say.

To get a clearer picture, human behavior specialists such as Blanca Cobb explain that certain gestures are hard to fake when someone wants a second date. Here are four signals to watch closely during your next meeting.

1. A smile that never really fades

A smile is one of the most reliable indicators—not a polite or automatic one, but the kind that appears naturally and keeps coming back, even between sentences. When someone feels good, relaxed, and at ease, their face lights up on its own.

If your date smiles often, laughs easily, or shows a soft expression around you, it’s usually a very good sign. It means they enjoy your company and associate the moment with positive emotions… exactly what makes someone want to do it again.

2. Attentive, engaged eye contact