With Hi5's Slack integration you can type commands in a dedicated #channel:
/hi5 @ - start giving a Hi5 to someone
/hi5 help - the quick Hi5 help guide
/hi5 received - see how many Hi5's you've received
/hi5 given - see how many Hi5's you've given
/hi5 avail - see how many Hi5's you have left to give
/hi5 ratings - see how many ratings you've done, and how many are still outstanding
/hi5 whoami - see your Hi5 stats and personal info
/hi5 factme - get a random recognition fact