I go in planning to do everything by scratch, but then laziness and exhaustion take over, and I end up using the same face and then change the expressions a lot and then crop or scale the photo in different ways so it looks less like the same picture....
Behold laziness at it's finest:
I tend to do this mostly when it's a lot of dialogue but very little movement.... like sitting down and talking, or standing in line waiting.
I also try to have maybe 3-4 pictures so I can cycle through them and it's hopefully alittle less obvious XD I'm probably not fooling anyone, but whatever.