Coffee discussion is happening on the Gather.town platform. This platform provides a 2d layout in which participants can navigate an avatar using the arrow keys. When a group of avatars are in close proximity, a video conference is started. Members of such a group can also share screen to, e.g., go over slides from the talks. The following is a brief guide to the experience.
Access: http://ec20.sigecom.org/tech/coffee-gather
Password: use the password provided for Zoom events.
Name: use your full name and affiliation.
The guide below contains details for how to navigate Gather including how to control interaction distance, how to locate people, how to have private video conversations, how to screenshare, public and private chat, etc.