Horse people are active and energetic. They got plenty of sex-appeal and know how to dress. Horses love to be in the crowd, maybe that is why they can usually be seen in such occasions like concerts, theaters, meetings, sporting occasions, and of course, parties.
Lots of good Horse info at the Productive Horse site.
Also, from http://chinese.astrology.com/horse.html
The horse is very quick-witted and is right in there with you before you have had the chance to finish what you are saying: he's on to the thought in your mind even before you've expressed it. In general, the Horse is gifted. But in truth he is really more cunning than intelligent - and he knows that. That is probably why, most of the horse people lack confidence.
Chinese believe that because horses are born to race or travel, all Horse people invariably leave home young. The Horse despises being pressured to act for the good of the group or made to feel guilty. No matter how integrated he seems to be, a Horse's inner self remains powerfully rebellious. Although they have boundless energy and ambition, Horses have a hard time belonging.
The Horse is hot-blooded, hot-headed and impatient. He is a bit of an egoist, well, selfish sometimes, that it is rare for him to interest himself in any problems except his own. And though this egoist works only for himself and for his own success, his work nevertheless benefits everybody. The Horse is a worker, adepts at handling money and a good financier. But unfortunately, he is also famous for suddenly losing interest on something. In his relationship with opposite sex, the Horse is weak. He will give up everything for love.
Being born a Horse, there are many contradictions in his character. Horses are proud yet sweet-natured, arrogant yet oddly modest in their approach to love, envious but tolerant, conceited yet humble. They want to belong, yet they are burdened by their need for independence. They need love and crave intimacy yet often feel cornered, pressured. But the truth is, the Horse is an individual, who depends only on his wits and his labor to get what he wants.