One thing that totally throws me off is the sound of people's voices. Seldom do they match their appearance. Some people sound very young, but then you learn their age or meet them in person and know they are not so young (people tell me I am like that). Sometimes the guy with the deep, virile-sounding voice turns out to be 5'6'" and chubby, rather than the big strapping specimen I might imagine. And women with sultry voices seldom really look that way. A couple of women I used to speak with on the phone frequently, but had not yet met, had these Kathleen-Turner-female-disk-jockey-in-heat voices, but they were really plain Jane's when I met them. Likewise, I have seen very hot-looking women with these squeaky, irritating voices. So I haven't found voices to be very helpful in trying to predict their appearance.