This method does not work very well in the forest or park, but it is well suited for city routes, where there is a constant engine around, and for competitions. The idea is to completely switch to the external environment - to observe people, notice some scenes, consider details. During long races, there is even more space for observation - you can read funny inscriptions on T-shirts, smile at supporters, collect statistics for popular manufacturers of running shoes, analyze someone else's running technique, etc.