Check this out: How to back a Hi5 on Desktop.
Scroll through the Hi5 Wall of Fame to find a Hi5 that you'd want to back ('like').
Tap on the grey hand icon. The number next to the hand shows how many times this Hi5 has been backed (number 1 is the original giver of the Hi5 😉).
Hi5 backing is unlimited and will not use any of your Hi5's!
Enjoy the confetti 🎉 You'll see the Hi5 you've backed has a red hand icon now, with a higher number next to it (this means backing has been successful). Nice one!
You can only back a Hi5 within the month that it has been given. Hi5's from previous months cannot be backed - yep, we like to keep things fresh!