Decorate in general ways

• Decorating for a holiday party is important, but keep the decorations as nonspecific as possible if you don't want to offend certain groups of employees. If you do not decorate, the people who normally don't celebrate winter holidays might feel that you declined to decorate because of them. Consider using generic seasonal decorations for your winter holiday party, such as sleighs, snowmen, snowflakes, and other winter scenes that don't speak to a specific religious belief. Avoid decorations with a New Year's theme, as many religions do not recognize Jan. 1 as the beginning of the new year. Choose secular music where possible.
  
  

Use a Different Date

• Many companies used to have winter holiday parties in December, which gave the events a decidedly religious aspect. Many companies now hold the events s at the beginning of January. If you plan your party for the week after Jan. 1, you might be able to avoid the religious connotations that come with a December holiday party.
  
  

Create a Committee

• The best way to determine what people would like to see in a holiday party is to form a committee to plan the party; the committee should be made up of a diverse cross-section of the employee demographic. Try to have as many ethnic and religious groups represented as possible, and allow everyone to have an equal say in the final party arrangements. Make sure the committee agrees on every aspect of the party from the food to the decorations. Committee members can identify which winter holiday customs are offensive to certain groups, including gift exchanges.