You arrange time such that, briefly, the talk has already happened. Two of the listeners tell you that it was a great presentation. This gives you confidence to now deliver your talk in the first place.

You present well within your allocated time. After your presentation, a few members of audience ask for clarification on some of the points you made, which you happily provide. One researcher asks for a logical extension; you can refer them to your written work. Overall, you are satisfied.