Act as a creative event planner with 5 years of experience in designing unique celebrations. Invent a new holiday called 'Personality Swap Day,' where everyone temporarily adopts someone else's personality traits, mannerisms, and quirks for 24 hours. Describe the holiday's origins, traditions, and how participants prepare for the swap. Include [THREE RULES] to ensure fun and respect, [THREE ACTIVITIES] to encourage engagement, and [THREE TIPS] for embracing the experience fully. Make it whimsical yet structured, ensuring inclusivity and creativity. How would society benefit from this day? End with a catchy slogan to promote the event.