When your audience is laughing at your quip or clapping their approval of your key point, let them conclude before continuing with your presentation. By rejoining your presentation too soon, they won’t be able to hear your first few words and you miss an opportunity to fully engage your audience.
By cutting the audience off too soon, it may even appear that you don’t appreciate their goodwill. Just say “thank you,” if appropriate, smile and continue.
Conclude with Style and Grace
The same goes for your conclusion. When your audience is applauding, stand graciously and accept the applause until they have concluded. You might even want to give a slight bow if it seems appropriate. Hang out for a few minutes to talk to people who approach you after your presentation and graciously accept their compliments. There’s plenty of time later to gather up your notes, disconnect your laptop, etc.
Take your time and enjoy the positive feedback. Public speaking is supposed to be fun and engaging.
You deserve it and so does your audience.