If you want to know if someone’s really into you or not you can apparently just listen to their voice!
University of Sussex researchers recorded conversations at speed dating events and found that men tended to lower the pitch of their voice when they wanted to see someone again– and the tone deepened if the woman was particularly desirable.
Also women generally spoke in a higher-pitched and less monotone voice, but switched to significantly deeper pitches if they sensed a man was in demand. Men were found to prefer women with deeper voices, which may explain why they change out pitch to attract a potential mate.
Lead study author Dr. Katarzyna Pisanski says the finding “[…] suggests that women raise their voice pitch to signal youth and femininity, but lower their pitch in contexts where they wish to indicate sexual interest to a listener.”