Guys are definitely not hard to get to notice you. Be confident in yourself, that will shine through more than any clothes, hairstyle or make up ever could. And smile smile smile. Believe it or not guys actually like nice girls that don't play dumb games.
Confidence makes a girl extremely attractive to a guy be yourself Hun and love yourself the way you are don't be conceited but be happy in your own skin don't dress too sleazy though if your looking for a real relationship..... :)
Be confident in yourself, when you ooze confidence, people notice and they admire you. Don't expose yourself, theres a name for girls who expose themselves unneccesarily. Make sure that you coordinate your outfits and walk with an air of confidence but not like a snob. Wear whatever color you look best in and don't pile up on the make up, keep it simple, fresh and I'm sure you'll get noticed.