Not sure about the great talker and vain bit...

You Have a Sanguine Temperament

You are an optimistic person who is easily content. You enjoy casual, light tasks - never wanting to delve too deep into anything. A bit fickle, it's easy for you to change plans or paths when presented with something better. You enjoy all of the great things life has to offer - food, friends, and fun. A great talker, you can keep the conversation going for hours. You are optimistic and sure of your success. If you fail, you don't worry about it too much. At your worst, you are vain. You are obsessed with your own attractiveness. A horrible flirt, you tend to jump into love affairs and relationship drama easily. You're very jealous - which just magnifies the craziness around you.

What Temperment Are You?