Can I use a pen on this laptop to draw?

Jgj

Ink and the ball of an ordinary pen would damage the screen.

please see the owner's manual about the stylus

Yes! You can. I use the adonit stylus on my iPad and it works well. I think it works on every touch screen device.

Yes, you can use pretty much any pen or pencil on the screen of a Lenovo yoga, provided it is not too thin. I find a pencil works best though.