How to give kudos to Jira users?
Once the Kudos functionality for a project is enabled, you can give kudos to a user or even a group of users from different views in Jira:
Issue View:
Click the Give Kudos button located on the left of the More button to begin:
Select the appropriate badge (i.e. value) that applies for this kudos, e.g. Ambassador in this case, and click the Next button:
Select at least one recipient (the default recipient is the assignee but you can change to any other users), and finally click the Send button:
Congratulations, a kudos has been sent to the recipient. The recipient should receive a notification email about this kudos.