There are a range of things that you might wish to do with your final slide. If you want to finish with a visual flourish, then the curtain visual metaphor is a good solution.
An alternative opportunity is to use the final slide to communicate a take home message, which you can leave on the screen while you answer questions and discuss points from your talk. See the example below.
A third option is to use the final slide to pose questions which you would like your listeners to reflect upon following your talk. If your talk is effective, then presumably you would like your listeners to either do something differently, or think about something differently. For example, if you had just finished a talk on time management, then you could pose the following questions:
- What do you spend most of your time doing?
- What are the three things that you do that waste the most time?
- What three things could you or your manager do to help you waste less time?
Alternatively, if you had just finished a talk on improving customer service, then you could pose the following questions:
- What issues in customer service did you recognize within the talk you have just heard?
- What are you going to do differently when serving customers as a result of hearing this talk?
These messages do not need to be discussed verbally, they can be left visually displayed and left for listeners to contemplate.
Isn't that better than "Any Questions?"