Good evening, JQNA and thanks for the invite to your question.
I'm probably the wrong person to ask, as my BF says I am completely oblivious to things most people would notice and I notice small things most people never see.
But upon reflection, I think the three things I am most likely to notice about a man are his voice and how he speaks (ghetto talk is so unattractive), his manner of dress (I hate saggy britches) and his eyes.
And if we can add one more, I'll say manners. A man who spits on the ground is gross and disgusting - so I'm going to notice, but it's all negative!