Every Halloween, James and his family decorate their house based on the themes of various horror films. The residents of their neighborhood look forward to visiting their house every year. This annual practice of James and his family is a .

Ritual.

Explanation:

As the exercise exemplifies, a ritual is a series of activities that could include from a dance, a song, an omen, words, totems or objects, etc., performed in a particular plance, date, background, etc. In the example, the ritual is to decorate their house based on the themes of various horror films. This being an annual practice, on a particular date, bringing out a series of actions from the family members is their ritual.