If the game will include all ages, ask guests to label any adult items, such as alcoholic beverages. Likewise, if they bring a toy, they can label it specifically for children. e Specify in advance whether they should bring silly gag gifts or something small but nice, just so all of your guests are on the same page.
You might want to have a “three steals” rule for gifts, people, or both. This means that a gift can only be stolen three times before the third thief gets to keep it. Similarly, a person can only be stolen from three times before they get to keep what they have. If you have a large group or you put a limit on the number of steals, you may want to tell those who have been stolen from just to choose a new gift from the pile. Otherwise, it could prolong the turn indefinitely, because whoever they steal from could steal too, and so on.
