Who is coming to the event? How many people will you be hosting? Will children be present? What are the relationships between your guests, your client and any guests of honor? How well they know each other? Do they share hobbies or interests? Do they work together? All of these questions and more will help you effectively plan event elements that will appeal to everyone. If the event is celebrating one or more guests of honor, understanding the traits, preferences and profiles of these people will be especially important.