Yeah I would count too, skeeter. The number of people wearing a certain color, the number of kids, the number of lights and ceiling tiles. If I sat toward the back I could watch various dramas unfold around me: public displays of affection, kids getting smacked, who is flirting with who, etc.
When I was about 10 I tried bringing a fiction book and hiding it inside my big bible. I thought I had it all figured out and sat in back so no one behind could see what I was reading. I neglected to notice the attendant standing behind me. I got caught the first time I tried it! So I never did it again.
I always liked to draw, too, if I pretended to take notes I could doodle freely.