When I add text to any design that I have created, I ALWAYS add a layer first. In this way, I have a CLEAR layer in order to add my text to for outlining and drop shadow.
Go to your tools and chose the "Text" option.
When you do this, "font" and "size" options pop up in your upper toolbar. Like so:
Highlight the numbers in the "size" box to where they look like this:
Type in the number you wish to have your font size. It can be ANY number. I typed mine as "195". Click anywhere AROUND the blue of your canvas (not your canvas itself) and the blue shading will disappear, like so:
Type out your text. This is me. *waving hello*
Go to your upper toolbar and find "Effects" > "Object" > "Outline Object".
This box will pop up:
If you were to click ok now, it will only outline your black text with thicker black. So, what if you want to outline your text in a different colour?
Well, you can either move the sliders up and down .... (which, as you can tell, didn't touch the RGB)
Or you can click anywhere on the colour wheel circle in order to get a new colour. (Which does change the RGB)
Either of these colours will change the outline of your text, like so:
Now you've seen how to outline your text! You can use this even for objects.