“Schmoozing patterns are similarly consistent. When men gather in groups to stand and talk, they show a distinct liking for certain kinds of places. They are, for one thing, strongly attracted by pillars and flagpoles, obeying a primeval instinct, perhaps, to have something solid at their backs. They also favor edges. Schmoozers do not stand often or long in the middle of big plazas.”
Source: wiktionary