When a woman lowers her chin after making eye contact, she's showing attraction. The chin tuck is an unconscious gesture that happens when she feels butterflies and wants your attention, even if she doesn't realize she's doing it.
Chapters
Okay, the next subtle sign that she is checking you out is what I personally like to call the chin tuck. This is, like, one of the highlights, one of the most common things girls do when they're attracted to you. And again, they don't know they're doing it. It's just she's overwhelmed with the butterflies and the excitement that it causes her to react this way. What she will do is the chin tuck. Your eyes will meet and she'll look down. And away. Sometimes to the side, sometimes just down, but if you get that chin tuck, that's a really— it's like, "Oh shoot, he caught me looking at him. Wow, he's really cute." It's one of the most common body language things a girl does when she thinks you're attractive, when she's checking you out, and when, you know, she noticed you, she wants your attention.