Easy:
An attractive woman is someone who doesn't try to look like everyone else. When at a party or in the store, you won't lose her in the crowds of people who all look like carbon copies of whatever is published that month. She is healthy and takes care of her body for the sake of health and nothing more. She doesn't look like a supermodel but instead she has little features about her face that only she has like a button nose or a strong chin. She may be a little larger or a little smaller than you may think is perfect but the first time you see her in the summer you will never complain. She will look her best without makeup because she is healthy but she will put on makeup for you when it's special because she's nervous and wants to feel pretty. And you won't bother telling her that the makeup is wrong because you always knew what she really looked like and its always there.
She does not look for boys to date but instead may bump into you on her way to do something important. She will have a strong will but a heart of love, soft in public but ferocious when standing for what she believes. She does not make her identity based on the pain of her past or the bitterness in her present; but instead she will be hopeful and kind to all around her no matter how much she is hurting inside. She will not dress to turn-on men or women but dress for comfort and practicality. She will use her pockets first and a purse second. She will be seen glued to a book more than a smart-phone. She will be caught taking pictures of the beautiful world around her, not taking pictures of herself. She will not be trying too hard to be the ideal woman nor will she be trying to outdo all the men; she will simply be trying her best to be the best her she can be. She will be only slightly self conscious about her biggest smiles because she thinks it makes her look goofy. When you go on your first date with her she will casually cover her face whenever she can but you will alway see her watching you with those beautiful eyes. She will not try to be something she is not but she will be shy about showing who she really is.
She won't be the one to turn heads when she walks by, she'll be the one studying the people around her. Her face won't belong on a magazine but in time it will be etched into your heart as the only face you want to look at.