Do not mistake loud for obnoxious either. You can be loud and nice and the heart of a party. I find guys more attracted to the louder ones, who actually socialise and then the guys who have absolutely no luck with ladies, go for the quieter ones, hoping they're shy with low self esteem so they have a better chance.
I'm a quiet one, but I don't consider myself shy because it's just me being observant and listening to the other people around me. I love good conversation, but I'd rather be quiet so when I do speak, my words are actually meaningful and hold some weight as opposed to being someone who talks and talks and talks but isn't really saying anything; just talking for the sake of hearing themselves -_- Loud obnoxious people turn me off since it's obvious (to me, anyway) that they're only acting that way for attention... which makes me want to do the opposite and *not* give them attention, lol