Melannie Gregersen explains how a woman's voice often drops slightly lower and becomes gentler when she's attracted to someone. The shift is usually unconscious and not universal, but it's a real signal worth noticing.
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Now, are you ready for that sign I said is probably the most surprising? Here it comes. This sign that she's attracted to you is that her voice might change. It's pretty common when a girl is attracted to you for her voice to get lower. Now, I don't mean she's gonna go around talking like a man. That was the best man voice I've got, sorry. I don't mean it's going to be like weird. "Hey babe, how you doing?" Instead, it may just become more gentle, more docile, a little bit lower when she's talking to you. This is of course not true for every woman, and she certainly will not know that she is doing it. But if you happen to notice that she has that more gentle, docile, little bit lower voice when she's talking to you, that can be a great sign of attraction.