I'm not sure if there is one body part.. If I'm going to take a second look at someone. It's because of the whole package.. Could be the way he smiled, the way he walks.. His hair, or lack of it.. I can't pin point it to one thing

if a guy has nice hands/nails -

I look at a guys arms and chest. That's the part I would rest my head against, and his arms to hold me.

I noticed the hands and arms of my current interest. But, its not always the same. Some guys I like because they are built and have nice broad shoulders, etc.

I look at a guy's eyes and his hands.

I'm a biceps woman !

Like a man who is rather lean and "naturally" a bit muscular in his arms and chest. Dislike the exaggerated body builder look.

Also, I'm a hair and face woman (even tho I "get it" that the face isn't part of the body).

OK I know I am the only guy responding to this, but need to cause I need clarification. I know the OP was to leave out face, because that is the first thing everyone would notice. But you all have to admit that once you got past the face, only then would you be looking at these other features, correct?

I ask, because I am 6'1" 205lb and am fairly well proportioned. Yet I never had anyone find me worth a second look as I feel it's my face that turns everyone off. I am not a monster or anything. I know my nose is bigger than it should be. I have no scars or anything hideous.

So admit that the face is first and if you can't get past that, then everything else doesn't matter.

Eyes and smile. Has to have nice teeth says the dental assistant. ;)

I look at a guys HANDS. if they are clean and nails clipped, that means the rest of him will be the same. I look at his jeans to see if they are clean and NOT the cheapest brand he would find. Quality counts! I like small tight butts and a man wearing boots , not dirty sneakers. If he has a beard and a mustache, they should be neatly trimmed with no food sticking to them!!

KK

For the most part, it's what he looks like as a while that's most important to me, but my attention has been known to linger on a man's chest, arms, and hands. Probably because I'm imagining myself laying against his chest, wrapped in his arms, his hands running over me...

Clean, doesn't smell of bo, no dandruff. A pleasant face helps but it isn't all. I like nice legs if he is wearing shorts. And I usually like a guy more if he is taller than I am.

I have to admit I'm surprised how many times hands are mentioned.
That's one I never thought about . Maybe a few bucks for a manicure
is worth it. Surprised no one mentioned abs..that's what all the ads
seem to accentuate.