Refer to the following for how to use any Holoearth Chat Stickers you have purchased.
1. In Holoearth, press Enter to bring up the chat window.
2. In the lower left of the chat window click the smile emote.
3. Clicking the Tokino Sora icon will show any stickers that have been purchased
*Tokino Sora will be the default icon regardless of what stickers have been purchased.