Split out chat room instructions for in-person vs online

Add instructions specific to Zoom, explaining how to
use the chat room and the non-verbal communication cues

slides/shared/about-slides.md

@@ -73,19 +73,3 @@ class: extra-details
   - you want only the most essential information
 
 - You can review these slides another time if you want, they'll be waiting for you ☺
-
----
-
-class: in-person, chat-room
-
-## Chat room
-
-- We've set up a chat room that we will monitor during the workshop
-
-- Don't hesitate to use it to ask questions, or get help, or share feedback
-
-- The chat room will also be available after the workshop
-
-- Join the chat room: @@CHAT@@
-
-- Say hi in the chat room!

slides/shared/chat-room-im.md

@@ -0,0 +1,11 @@
+## Chat room
+
+- We've set up a chat room that we will monitor during the workshop
+
+- Don't hesitate to use it to ask questions, or get help, or share feedback
+
+- The chat room will also be available after the workshop
+
+- Join the chat room: @@CHAT@@
+
+- Say hi in the chat room!

slides/shared/chat-room-zoom.md

@@ -0,0 +1,68 @@
+## Use the chat!
+
+- In the Zoom UI, click on "Chat" (at the bottom of the screen, in the middle)
+
+- This will bring up the chat panel
+
+- Say hi in the group chat!
+
+- If you'd like, you can open the chat to its own separate window:
+
+  - click on the little `v` on the left of "Zoom Group Chat"
+
+  - select "Pop Out"
+
+- We will be monitoring the Zoom chat during the whole training
+
+- Don't hesitate to use it to ask questions, or get help, or share feedback
+
+---
+
+## Use non-verbal communication cues
+
+- ... wait, what?!?
+
+--
+
+- In the Zoom UI, click on "Participants" (at the bottom of the screen, in the middle)
+
+- This will bring up the list of participants
+
+- You can pop it out if you like (just like the chat window)
+
+- At the bottom of the list of participants, there are feedback buttons:
+
+  raise hand, yes, no, go slower, go faster
+
+- If you click on "more" (on the right of these feedback buttons), you can also:
+
+  thumbs down, thumbs up, applause, need a break, away
+
+- Click on "thumbs up" to let us know that everything is working fine!
+
+---
+
+## Use your webcam (if you'd like!)
+
+- If you would like to turn on your webcam, feel free to do so
+
+- You don't have to, but your teacher will appreciate it :)
+
+  (it's easier to teach and get feedback from human faces!)
+
+- You are welcome to smile / frown / raise your hand ... through your webcam as well!
+
+- Great metaphor, courtesy of
+  [Liz Howard](https://twitter.com/lizthedeveloper)):
+
+  *“It's just like being in a classroom.
+  <br/>People with their webcam on are in the front row;
+  <br/>people with their webcam off are in the back row.”*
+
+---
+
+## During the session
+
+- We will often ask "yes/no" questions; use the corresponding buttons
+
+- If you have a question, you can ask in the chat, or use "raise hand"

slides/shared/prereqs.md

@@ -50,8 +50,6 @@ Misattributed to Benjamin Franklin
 
 - Go to @@SLIDES@@ to view these slides
 
-- Join the chat room: @@CHAT@@
-
 <!-- ```open @@SLIDES@@``` -->
 
 ]