in the demo of the template there is usually a typography page that demonstrates all the text types you can show, i.e. the bubble. these only work for text in articles. to set it up you will need to add <div class=”bubble1″>Your Text here</div> to get it to show up in the bubble.
Sometimes there are customizations you can do on modules that change the way a module looks. like the hilite module in the demo on the front page. The styles on typography just change text in articles.
You could have the text in a module show up in a bubble using the div tag, but it would not change how the module looks. Make sense?