Sagittarius isn't known as one of the more diplomatic signs. You can be crude and boastful, and even overly confident. Your personality tends to be bigger than most, thanks to your Jupiter ruler.
But wit is one thing you can't do without. In romance, your sign of Sagittarius wants someone who's playful and vibrant, and preferably a traveler and explorer of some kind.
Intellectual, sensitive, and expressive are other requirements. You tend to be idealistic, so you know there's someone great out there for you. No two ways about it. The question may lie in finding the exact right one.