We advise our guides to get to the start ten minutes earlier to meet the audience and have a good chat. This calms the nerves, gets the voice box turning over and gets you acquainted with the audience. Are they native English speakers? Will they get our humour? Are there children in the group? Tailor the communication likewise. If there are elderly people, perhaps walk a bit slower. Notice a quizzed look and ask why. See a raised hand. Notice a limping straggler and walk with them. Try and engage the audience as early as you can. “Any Irish people here? Did you know it was an Irish Doctor who founded the British Museum?” Offer them questions, show pictures, ask them to vote on something - you are there both to educate and entertain, but also to converse and hear them too.