You'll be expected to reach out to them via Mattermost to let them know that you're their buddy, and that you'll be available throughout the event in case they have any questions, comments, etc. If you're not the right person to answer their questions, it will be your responsibility to reach out to the correct person, and make sure they connect back with your buddy. We'll also expect you to engage with them throughout the event (via Mattermost) periodically, so that they feel as welcomed and included as possible.