You can control the order in which topics are listed or displayed. Featured topics automatically rise to the top, both on the front side of the site and on the Topics page.
To do so, navigate to your Management Dashboard and click the Topics tab.
Here, you'll see your created topics. On the righthand side, before the Edit button, you'll see a box to check labeled Featured, check that box to make that topic featured.
On the Homepage, participants are able to choose how they view all topics by clicking the drop down arrow next to Featured. Those options include: Featured, Interactions, Newest, or Alphabetical.