Pintxos or Pinchos (pronounced "peen-chos") are small portions of food, eaten in bars, and are an expression of "miniature cuisine". They come from the Spanish tradition of tapas, which are small portions of food, generaly taken from a bigger part, that are served in many Spanish bars along with the drinks.
History and Culture of tapas and pinchos
To live and act like a local, is a very exciting attitude traveling. If you go to a bar of pintxos & tapas for the first time, these basic rules will help you to behave like a San Sebastian "native".
These basic rules will help you not to put one's foot in it...