From the now deactivated official Russian exclusive VKontakte game Мой маленький пони: Школа Дружбы (Friendship school) promoting Pony Life series

This one is a sign one could choose to wear as 'status' on VK social site (as reward for completing HTML5 game answering questions about what friendship is), icon of the sign would be displayed next to user's name; clicking on sign would show a small window saying you have selected pony's trait

Among Mane Six's signs, there's also random heart. Its window says 'Friendly heart. I take friendship close to my heart'

Game works like this: https://youtu.be/HTm_v6ckhOQ