Writing over screen captures with Paint

Jennie asked some good questions in my earlier post on email. As for the Yellow "writing" I put over screen captures to explain the steps for doing things. I start by taking a snapshot of computer screen (screen-capture) by hitting the "print screen" button located on the keyboard between the letters and the number pad. Toward the top - but not in the row of "function" keys.
I then open the Paint program - it's on all PC's - or ought to be. Look into the Accessories folder. Paste into a new project (hit control V - or go to edit and find Paste). Once in Paint, click on the pencil and open your colors palate.

You'll get a pop up or you can use the palette at the bottom of the page (which I always overlook - don't know why).

Actually - to make things easier to see - I've been using the air brush today - more than (or rather than) the pencil. It gives you a fatter line that's easier to see. That's the button just below the pencil.
Thanks for asking.