First Foot
From Wikipedia:
the first-foot is the first person to enter the home of a household on New Year's Day and is seen as a bringer of good fortune for the coming year.
The origins of first-footing is uncertain, although there may be a connection to the Viking Invasion of the British Isles: "This may go back to the time of Vikings when the arrival of a blond stranger at your door would be the cause of fear and alarm."
In Scotland ...
The practice of first-footing is still common across Scotland and varies from place to place as part of Hogmanay celebrations. The luck that the first-foot brings with him will determine the luck for the household for the rest of the year.
Generally, the first-foot should be a tall dark-haired male who is not already in the house when midnight strikes.
In many areas, the first-foot should bring with him symbolic gifts such as coal, coins, whisky, or black buns.