Liking not only lets you show your appreciation for a post, but it may lead to Voice Tokens for the author. Posts and comments receiving 10 or more likes within an active Daily Voice Tokens period are eligible to receive additional Voice Tokens.
Liking a post
To like a post, make sure you are logged in to Voice and click on the heart 
in the upper right of or under the post.
For iOS, to like a post tap on the heart at the bottom of the post. When you like the post, the heart will turn red.
Unliking a post
You can’t un-like a post unless you have liked it before. To un-like a post you liked, make sure you are logged in to Voice and just click on the red heart. 
For iOS, to un-like a post you liked tap on the red heart at the bottom of the post.
Can I see who liked my post?
This feature is not currently available.