Did anyone want a tutorial? I made one. Late at night. On a slow connection. You better thank me for this.
Open up particle editor
click file>new
click "create" and name it whatever.
Click on those three little dots ...
Choose any sprites or texture you want, but for tutorials sake I'm using this smoke sprite.
Go to the dropdown menu to the left, change it to "renderer" then right click in the empty area and click "add"
Click Render_animated_sprites, then click "open"
Change the dropdown menu to "emmiter" add the value "emit continuosley"
Notice there is a puff-o-smoke. Be happy, I know i am.
Change the dropdown menu to "initializer" and add the value "Position within sphere random"
Change the value of "distance_max" to 100, notice that our lil' furries have multiplied.
Change the dropdown menu to "operator" add the value "movement basic"

Change the value of "gravity" to "0 0 -60" notice our furries now float.
Change the dropdown menu to "properties" and change the value of "max_paricles" to "100" notice we have less furries, but the float more fluidly
At this point we find, that there is nothing wrong with plain white furries, but the've became slightly monotonous and drab. lets add color. Change the dropdown menu to "Initializer" again and add the property "Color Random"
Change the values of "color 1" and "color 2" to anything you want. be amazed at your beautiful floating furries.
Finnally, save your creation as something apropriate.
I hope this has given you a better look at the basics of particle editor, I hope this inspires people to do diffrent things and push the limits. If this was helpful please give me alot of money. I appolugise 4 mispel'd woreds et es lait hear.