Crafting the perfect guest list is like creating the recipe for a great party. You have to know how much of each personality and group of friends to mix for the optimum result.
Guest Guidelines
Invite at least two groups of people who don't know each other, but would get along well.
Make sure each person attending will know at least one or two other people at the party.
Ask guests to bring significant others or friends so they will feel comfortable. It's easier to mingle when you already have a friend.
If someone doesn't know anyone else, catch them when they arrive and make them feel comfortable by introducing them to everyone and starting a group conversation.