How to Be the Life of the Party
To be the life of the party, you must first be committed to a definite lack of boundaries and social etiquette. Consider yourself like Germany invading Poland in World War II. They weren't welcome but they made their presence known in a big way. This is the attitude you must adopt to be a successful "life of the party." You must remain unaffected by comments like "What an ass!!" and "Check out that douche bag!" if you are going to make party history.
Being the life of the party can be a lonely life because you have to be willing to do extreme stunts to create memorable moments revelers will recant to their children and their children's children. Being the life of the party is more than plugging in the karaoke machine or leading the train. That is behavior for any party hack but you want to be special and stand out. You must be willing to do the unthinkable. You must be willing to strip naked covered in shaved cream and let party guests take turns shaving you. You must be willing to have an Alpo-eating contest against the host's dog. You must not let fear of little items like jail, lawsuits, and restraining orders hold you back. You must be in THE PARTY ZONE!
To do this, you must think what would Jack Black or Will Ferrell do, and then top it and not just by a hair. You must go all-out, full-frontal and bring it! Grab a guest's hairpiece and dip it in salsa and start chewing on it. Find the oldest person there, any gender, and start making out with them without warning. Find the hottest chick there and put a horse saddle on her and ride her through the crowd, yelling, "Ho Nelly!" To truly stand out, think of ways to attack or victimize locations nearby. If the neighbor has a pool, drag an army of skinny dippers over or if really committed fill it with dirt and plant a flower garden in it. Paint the neighbor's car pink or climb up on their roof and have someone ring the doorbell. When the neighbor comes to the door, you then defecate on them. They'll never see that one coming! You must allow yourself to completely override that little voice in your head telling you to "Stop!" and "That's illegal" and "That looks like it would hurt!"
Even if you have the misfortune of getting arrested, the other inmates will be impressed by your exploits. Of course, then you have a rep to maintain so you'll have to be creative every day so your audience stays warmed up.