There are a few things that I find incredibly attractive in a person, particularly someone of the opposite sex.
Me myself being a very outgoing friendly person, I'm not particularly attracted to assholes. I mean, being a little tough and having a strong personality I don't mind, being a straight up asshole I do.
Generally one of the first things I notice about a person is their smile and laugh. I find sense of humor incredibly attractive. I'm a goofball and I tend to have a weird, off and twisted sense of humor at times. I try not to take life so seriously and I don't take offense to every little thing. Honestly, I don't get easily offended in general, I know the world doesn't revolve around me and not ever pun or joke is about me. In any case, if someone has a great sense of humor and knows how to laugh and laugh at themselves as well, I see that as a very attractive quality.
Second, I find a strong presence attractive. Someone who exudes a good sense of self, who is pretty confident in themselves. Self deprecation is definitely not something I find attractive. And someone who is not afraid to speak up, have a real conversation and likes to have a good time.
Of course there are also some general physical attributes I find attractive. Pretty eyes are a big plus, if a person has nice eyes I find that attractive, the color is not really a factor. And from my blog post a couple days ago, I thinks it's fair to say I find the tall, dark and muscular man pretty damn attractive haha. But that's just the initial pure "hotness" lust kind of attractiveness. A guy that looks like that could just as easily be an asshole who has no sense of humor and is very dry....which in turn would turn him into an unattractive person.
I also find ambition very attractive. I don't find loathing, lazyness and zero ambition attractive at all. When someone has life goals, aspirations and strives to better themselves as a person in their life and their career and for themselves, I find that incredibly attractive. I myself am a very ambitious goal oriented person, so complete apathy is not something I like in a person.
And finally general kindness for others and all life forms. I find people who are kind, not just to humans but to animals, an incredibly attractive trait. Someone who is mean and has complete disrespect for other life forms I find a very ugly person in general.