Different people have different taste and in case of woman also every man as got its own taste but as far as myself & my close friends are concerned; i realise that we are more attracted toward girls / womans who has curved bodies.
Very thin body never gives any attractiveness to woman's face other than just having fun to wear jeans, tops but if any woman / girls like to be attractive as well as beautiful she should go for good healthy food in requisite amount so that they are healthy & wise, it better to go for yoga than for any aerobic, gym etc.
Lastly it always better a girl / woman ask men how she can be attractive.