Secret Santa

From BoardGameGeek:

Tonight is Secret Santa night! The players will come with their own secret presents and try to finish the night with the best presents brought by their opponents (and the "Unknown Visitor" in the 2 and 3 player games). You will need your deduction but also your bluffing skills to win this game! Will you be able to gather the presents that give you the most points or will you have plenty of tea bags? In the latter scenario, do not forget your tea pot! It might be useful...