gazing on a Sunday afternoon

Daydreaming? A keen student of human behaviour who has learnt that the best way to be inconspicuous is to look disinterested? Preoccupied with matters of internal philosophy? Debating with himself whether or not to pop to get a coffee from the AMT wagon for the superior taste to his own wares despite the risk should a superior discover his disloyalty? Bored out of his mind?

I could quite happily sit and watch people in a station for most of a day though there is the risk that polices might take an interest too. Getting a part-time job at a stall such as this would provide the perfect cover though would entail the risk of having to interact with the subject population rather than merely observe them from without.