Open Settings=>Rewards
In the GENERAL tab enable module.
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You will see new options:
Currency Label = you can give your points a friendly/ name.
Company hashtags - you can choose a reason for sharing points between employees.
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If Performance review is enabled and Core Values are in use, you can add them as reason as well.
So when Employee wants to use a reason for the colleague's recognition, these options will be shown in the form.
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Send rewards notification to Slack Channel?
Here you can specify if information about shared rewords will be sent to Slack channel. More about Slack webhook you can read here https://api.slack.com/incoming-webhooks.
Then you need to specify default reviewers for reward requests. This person will get a notification about requests and will be able to approve or reject it.