Make sure that you’re using terminology that your volunteers understand. Many times they won’t speak up if they don’t get what you’re saying because they don’t want to appear stupid. This is especially true for newer team members – they often assume that everyone understands except them, and don’t want others to think they’re incompetent.
If you’re using musical terms or technical terms [ex. “sforzando” or “gain staging”] when you’re not 100% sure that your volunteer gets it, pause and rephrase in plain English. It can be difficult for someone with years of experience to remember what it’s like to be a noob, but that’s your job. Giving team members the 101-level training that they need – with patience and understanding – is part of being a good leader.