Just the little emojis like other people use. haffast posted a youtube instructional and it was easy enough for me to figure out. I am now a master of emoji style gung fu.
Next, I will check out GIMP, which I've heard of so I can make my own graphics.
The road to nerd-dom goes ever on, as Tolkein once said. I think.
Thank you for the tips, goodman.
Bagster