Launch the LiveSlides app.
Open a presentation in Keynote.
Visit the Tweetwall website, click 'Start your Tweetwall now', and sign up for your account.
Click 'New Tweetwall', log in, and authorize Tweetwall to use your Twitter account.
Copy the URL of the Tweetwall from the browser.
Paste the URL into the LiveSlides dialog and click "Insert".
A new slide with a placeholder image will appear at the end of your presentation. Drag the slide to where you'd like to display the web content.
Click the Play button to view the live web content in presentation mode.
Choose your operating system for instructions on inserting Tweetwall into PowerPoint on Windows or Mac.