What makes you notice someone?

Well, the first thing I notice about someone is their smile. Generally, I smile at everyone and if they return my smile then it makes me think that they're a nice person, sure, but occasionally there is someone who smiles at me with a fabulously genuine smile. One of those smiles that makes me think that they truly wanted to smile. That person really is happy and wants to share that happiness. That is what catches my attention. There was a lady like that at the grocery store today. I saw a lot of ppl but this woman is the only one that I actually remember her face and that she had a little girl with her. When I smiled at her she gave me one of those real smiles. I loved it!!