If you plan to take questions, do so prior to ending your presentation. You’ll want to end on an impactful statement. When you receive your applause, stand there and take it. The most logical reaction to applause is to get off the stage as quickly as possible.
Be sure to be available after your presentation for the audience to approach you. You’ll know when you’ve done a great job when it takes up to an hour to answer all of their questions.
When you have back-of-the-room sales material, this is when you’ll want to present them. Make sure you have a display set up prior to beginning your talk and stand near your products when you’re finished.