Filming homeless for church

I have been helping out at our church by doing sound and "leading" our Tech team, and one of the other things I've gotten the opportunity to do is create and edit a few short video clips for use in the service. It's been pretty fun doing the clips that I've done, but it is a time-consuming and computer-resource-using process. Now they've asked me to go with a group to downtown Atlanta and videotape some homeless people answering the question, "What do you think compassion is?" It's a different thing, something I've never done before, and I'm kind of nervous about it. But I trust that the Lord will take care of me as I go and do this.