Take a pledge to give other runners you see in passing a quick 'wave'. It's a simple sign of respect, and it's about acknowledgement. It doesn't matter if you are an Elite runner or a complete beginner. A quick wave to a fellow runner going the oppose direction can help boost theirs and your performance and self-esteem.
There's nothing worse slugging away, and someone runs by and completely blanks you. Why do that? Running is hard enough, so this add-on group is for those runners who recognise those hard time's, and simple gesture 'wave' or 'hello' to a fellow runner is a great boost for all.