Most of my time knitting is while reading nowadays. There's a lot of reading to do. While knitting while reading is not typically a problem, so long as the project is an easy pattern or stockinette, casting on while reading is another matter entirely. I've been like this:
For quite some time, trying to both finish that book and get some work done on my new slippers. Three times seems to be the charm, I've finally got the first row going well. I think. Give me another couple of rows to be sure.