Pumpkin Seeds are Items that were added in Update 0.8.0. They can be Farmed to make Pumpkins.
Pumpkin Seeds are an item that can be found in Abandoned Mine Shaft Chests or by putting a pumpkin into the Crafting grid (This will get you four pumpkin seeds).
Wikipedia Article About Pumpkin seeds on Wikipedia Pumpkin seeds are occasionally served as a snack during Autumn holidays like Halloween or Thanksgiving. Often they are prepared by separation from orange pumpkin flesh, mixture with a generally salty sauce (Worcestershire sauce, for example), even distribution on a baking sheet, and oven-heating at a relatively low temperature for a long period of time.