The best way to do a bit of psychogeography is to mosey around with no pre-planned expectation. This is called going on derive, or urban drifting. It is leaving yourself to be delighted by something new, getting to know a place in a different way than you did before and remember the difference.
In 1955 much of psychogeography was documented through the act of map making and plotting the “subconscious” journey undertaken. To accompany these maps, theorists would also document their travels by writing self-reflecting statements.