Use the recognition slash command /shoutout @name reason [Great job today!] to send a shout-out. Include multiple @names to send your shout-out to more than one person.
Step 1: Type slash command
Step 2: Review shout-out dialog
Step 3: Add a GIF (optional)
Step 4: Select whether you would like for the shout-out to be public (can be seen by everybody in the designated channel) or provide (only seen by the recipient and administrators).
Step 5: Send!