To connect with other attendees directly, search for their name and click the "Invite to Chat" button beneath their profile.
Your invite will prompt them (via email) to join your private chat room. To accept the invitation, the invitee can respond to your email confirming they will join the room immediately or proposing an alternate time.
To access your private chat room, use the button on the right.
Please monitor your email inbox for invites from your fellow attendees.