...searching for a person that is hidden in a town or forest (like Jon Connington x Robert Baratheon before the Battle of the Bells)?
...spreading some rumors about someone or something (as in Renly's Ghost situation, but deliberately)?
...a cyvasse dispute?
...a luck and wits game like dices or cards?
...throwing dirt or sand in the opponent's eyes for combat advantage and similar tricks?
...torturing someone to get a confession?
...making and dealing with poisons?
...setting a trap (from cutting the saddle of a knight to making a bear-trap)?
...analyzing the skill of a person (riding, swordmanship, handwriting, etc)?
...analyzing the quality of a good (a weapon, a coin of gold, a wagon, etc)?