Most guys are not shy about letting a woman know when they're ready for action. But men tell us all the time that there are few things hotter than a woman who initiates a hookup. So, learn to read his in-the-mood signals (in some cases, before he even realizes it), with the help of Janine Driver, author of You Say More Than You Think, and beat him to the punch. He gets an "eye erection." His pupils dilate, making the black part of the eye go from small to larger, something that happens when arousal spikes. He hooks his thumbs in his belt loops. It's an attempt to highlight the crotchal region and get you thinking about his junk. He touches his nose a lot. Unless he has a cold, this could be a sign since the Journal of the Royal Society of Medicine recently reported that the nerves in a guy's nose and his erectile tissue are linked. He speaks more deeply than usual. A 2010 study found that people lower the pitch of their voice when they're turned on. He cups or rubs your shoulder. This is often a subconscious simulation of grabbing some tata. He goes in for a hug and rests his hands low on your back. It may not feel sexual, but if he lingers just above your ass, he could be craving, well, ass. He bites his lower lip and shakes his head. Dudes who do this when they're talking to you may be feeling frisky. Source: Cosmopolitan