Posing

At the best of times it wasn't a relaxing activity to pose for a photograph (front and back):
Just relax...

 

Some sort of leaning appliance was a necessity for exposures more than 30 seconds or so, and the naturalistic pose was pretty much beyond most subjects:

 

naturalistic pose

Some subjects end up looking even dimmer than they ordinarily did:

naturalistic pose

It's so homelike to have a handy amphora or ewer or something:
naturalistic pose

Some contrive a pensive or studious look:
naturalistic pose

...and some go for the jaunty with legs akimbo:
naturalistic pose

naturalistic pose

...but others are just deer in the headlights of convention:
naturalistic pose