A popular way to build the kingdom of God is to do missions trips. This could be considered outreach, but holding a barbecue in a park for people and traveling specifically to go preach the Gospel are two different tasks. Missions trips could be viewed in two ways: 1) committing a couple weeks to go on an international trip, which would most likely be outside the comfort zone of many. 2) If an international trip is a little too intimidating or expensive, then one within the country would work just as well. Just because America is advanced does not mean that sin is fixed without Jesus and that people do not need to hear the Gospel. Build the kingdom by taking the great commission seriously.