I can only hold a book with my right hand, it feels weird holding it with my left (force of habit, I suppose). I also read while eating, it gives me precious reading time and, when I am alone, I find it rather decadent. Mostly I read sitting upright (none of this lying on stomach or back lark!) with the book relatively high; I get neckache if I look down for too long.
I do have this habit of reading on my side when I'm in bed. It can be a tad awkward but when it's cold and I want to be covered by the duvet or I don't want to waste the energy to sit up, it works a treat.