I've spent a lot of time looking at people, and I've observed that the features of people considered beautiful are often not that different than those who are not. What's mainly different is the amount of time and care they're socialized to put into their appearance. I think many of us have grown up to feel like there's something "wrong" about obsessing too much about how we look, so we deliberately look as if we don't do that. But consider: if you worked out 3x a week, if you got a haircut every 4 weeks and figured out what "product" you should put in your hair to make it look its best, if you reviewed mens' magazines before taking a monthly clothes' shopping trip, would you be considered more conventionally attractive?