From one of our pastors:
When you’re trying to create an inviting atmosphere for group prayer time, open with something like this:
“Dear God, thank you for this day and the beautiful sunshine.”
The natural reaction of everyone else is, “The leader prayed like that? Surely I can do better!” Prayer in front of a group becomes much less intimidating – your prayer wasn’t long, wasn’t eloquent, and left things un-prayed for, leaving room for other pray-ers.