I, unfortunately, tend to notice weirdos. Like the guy who wears very loose fit clothes and always comes in the middle of class, or the otaku guy who always walks so slowly and as if he's got some secret going on (I hope they're not on this site and see this omg)... I'm not attracted to those people, I just notice them. For that matter I'd say, people with neat set of clothes, and long legs, or nice hair, confident body language etc; takes me longer to notice them cause I'm busy watching the weirdos though lol
First thing I notice (just looking at him) is his hair. Even without seeing his face, hair is definitely part of what make someone's appearance attractive for me. Then I notice how he dresses, that part doesn't matter as much to me. I usually don't think of them differently by what their wearing. Then, of course, I obviously have to notice his face. Specifically, eyes. A genuine, big smile is really cute too. As I talk to them, I find it really attractive when they ask me questions and try to get to know me. A genuinely sweet personality is amazing. And also, when they can make me laugh. Boys who can make me laugh hard or tell funny jokes are great. And finally, just someone who is confident, and I feel comfortable around. Hope this helped :)
Superb Opinion