Get your bearings at the screen
Cross Shinjuku Vision, associated with the 3D cat, is at 3-23-18 Shinjuku on the station’s east side. Use it as a meeting and orientation point, then move out of the pedestrian flow before deciding the next leg.
Agree whether everyone is heading for a street walk or a longer evening. Keep the next landmark on your map rather than asking the group to remember a chain of left and right turns. There is no need to explore both sides of every junction.