How do I hexbear?

I'm just a silly billy who has lurked on Chapo.chat wink for quite awhile now; But I don't know how to do half the things (more like 90%) above the text box window that I put my delicately selected words into to make the freshest and most delectable word salads. So... How do and what do? If a power poster would like to go over each feature individually I shall abandon atheism and pray to satin for infinite 9/11's on the first world. Thx in advance. (this was going to be in regards to the emojis but thankfully realized that it wasn't just the lame ones you get on your phone when you click on the face, only if you don't search for anything)