Inside the booth
Pass one object through four frames
Build a small visual relay.
A harmless lightweight object can connect the portraits through position and movement.
Plan the visible handoff
Choose an object that does not cover faces or create a safety problem. Sketch where it appears in each frame: entering, held centrally, passed across and leaving. Keep the action small enough for the booth space. If two people participate, agree on the handoff before capture starts.
Check the frame edges
Review whether the object stays visible where the story needs it. Keep hands clear of equipment and avoid sudden movements during capture. A second attempt can adjust one position rather than the entire concept. Leave the final caption brief so the visual sequence does the work.