For instance, the youth at FUMC in Boyd has a Bring A Friend Retreat every year, which is an overnight event culminating in worship on Sunday morning. Consider serving coffee, bagels and fruit between Sunday School and worship services. Or, you might consider having designated persons in the parking area to assist those looking for a place to park. A meal is a vital part of BAF Sunday. Even though it may be complicated, resist the temptation to skip this part.
People are more likely to invite others when there is a meal involved.
If you are short on rooms, consider a picnic outside. Be sure you have a plan in place to follow up on those who visit your church, then follow the plan faithfully. You may need extra volunteers after BAF Sunday.