DEEPER DIVE
How do I add media? There are three main steps involved in adding media to an ARIS design. One, you need to select and format the media so that it is the optimal size. Two, upload the media using the Media Tab in the ARIS editor. This tab serves as the central location where all of the media you plan to use in your design gets uploaded. Finally, once you have uploaded the media files, you can assign them to specific objects (e.g., Plaques, Conversations, Items, etc.) within the editor.
For more information on media: http://manual.arisgames.org/editor/media
STEP-BY-STEP
When you are done your Conversation should look like this.