Use a felt-tip highlighter to shade material that seems important, or use a ballpoint pen and put symbols in the margin next to the material: stars, checks, or NB.
In order to master the ballpoint pen Biro came up with a new design that would pull the ink onto the ball, without gravity or moving parts, producing a consistent and smooth line on the page.
I'm looking for a pen. I want a ballpoint pen. Do you have any good ones? What's on sale? What's your best buy? Do you have any specials? I like this. I'll take it. How much is it?