Hold a compassion and justice fair for the general community on your church grounds. Invite local charities related to human trafficking, disaster relief, or community development, for example, to set up booths and disseminate information. Sell food, drinks and goods tied to the causes (for example, fair trade items or those that are handmade by artisans in poor countries to earn a living). Screen a related documentary, invite an expert to speak and provide related kid-friendly activities.