Yes I would look ahead. I made the mistake of looking away from the screen for a second and didn't feel too well when I looked back at it.
I didnt get sick just that I felt dizzy because it kinda disorients you for a little bit. So my advise to anyone would be stare straight ahead and not to look anywhere else
My understanding is when you look to the side the spinning messes with your inner ear. Some folks just get very sick others are luckier and get less ill.