If you want the animated characters to
show emotions, write these smilies in the text:

 :-)   Happy                  |-(   Angry 
 :-0   Surprised              :-|   Worried 
 :-.   Secretive              :-j   Slanting Smile 
 ;-)   Waggish                :-(   Sorry 
 ::-)  Interested             :'-(  Sad 
 :Y    YES                    :N    NO 
 :^(   Offended               :-?   Questioning 
 :N)   Smiling no              
 !:-)  raise eyebrows         >:-)  lower eyebrows 
 \:-)  raise right eyebrow 
 /:-)  raise left eyebrow 

If you write the smilies with too short distance in between,
they will overlap so that only some of them will show.

Many people write a smilie at the end of the text. This will hardly show on the animation. Instead write the smilie before the last word. Then it will show at the end of the animation.