Ensure that the Instant Chat channel is enabled on both Relays
Change the channel on both Relays to the Instant Chat channel
Bump the backs of the Relays together and hold them
Wait for the Relays to each vibrate and announce "successfully joined the group"
Press the talk button and enjoy the instant communication!
This is a temporary chat channel between two Relays.
If you change channels on your Relay, will remove the connection from the instant chat channel; you will need to set up the Instant Chat channel again by following the above steps.