On Sundays, I hardly ever read my Watchtower. I would take 2 minutes to underline here and there just to look good. If I wanted to make a comment at the Watchtower study , I'd read 1 or 2 paragraphs and answer the question related to those paragraphs, that's it.
On Tuesdays, at the book study, most of the times, I wouldn't even read the chapter, unless I wanted to comment.
On Thursdays, I didn't prepare anything, just went the meeting at the hall, and let the others comment.