It really depends on the person; different things stand out. General look, so clothes, hair, makeup, if it's especially interesting. Voice if it's unusual.
Laugh. I definitely notice laughs.
"When the people begin to reason, all is lost" - Voltaire
Clothes is the closest option to body, I guess...
"Sell your cleverness and buy bewilderment." - Rumi
Add me on Facebook and MySpace.
You forgot the neck. A nice voice and a sexy neck, and I'm already in love.
" . . . The sun does not shine upon this fair earth to meet frowning eyes, depend upon it." Charles Dickens