I've heard that if you're able to read books (or grade papers
) you need to be working harder.
One of the things I found hardest when I started running club was the fact that people chatted on the way round. I have a tendency to push myself as hard as I can and do it in silence, but I'm gradually getting to the stage where I can keep up a conversation as I run. When I'm on my own it tends to be no more than the odd grunted "good morning" as I pass people, but it is getting easier to chat when I'm running with other people. It does depend what workout I'm doing though, some are much harder to get the words out in than others!