I'm sat next to a bespectacled, lanky, casually dressed middle-aged man reading an instruction book of some sort........ A Canon gadget instruction book
Laid on the table in front of him are his; iPhone, spectacle case and a personal music gadget (I don't recognise the make) to which an earplug extends from gadget to his ears
He takes off his spectacles and proceeds to packing away the instruction book and now sits with his eyes closed and arms folder, listening quietly to music