This page is a permanent link to the reply below and its nested replies. See all post replies »
Salix75 · 46-50, F
I doubt detecting it it's a male/female difference. I think anyone who's observant enough has a chance at noticing. When we are attracted to someone our body gets flooded with various chemicals and responds physiologically - pupil dilation is one of the responses. So yeah, someone who's madly in love may have that big puppy dog look on their face :)