For the purpose of outreach, suppose you decided to do an old-fashioned door-to-door canvas where you just knock on every door in a given area... What approach would you use at the person's door?
For example, would you make it more a survey and just ask questions? ("What can we do for you?" "How can we pray for you?") Would you just invite them to worship? Would you just give them general information about your church? Would you plan it in conjunction with a specific event and invite them to that particular event? Would you try to make it a gospel presentation? Etc.?