Here is some advice, I used a lot.
Don't understand what one is saying?
Nod, respond with any yes answer.
They ask you a question where you can't answer YES or NO, take a bathroom break. RUN!!!
Can't eat what is on your plate?
Have those napkins out, and be sure to wipe your nose, but really your spitting that food out into a napkin, and placing it in your pocket.
"MMM, I love meatloaf you made mom"
here's advice I got from Meat Loaf to stay fit (saw it on ROL)
He says something like,
I be sure to stay fit. I get up at 4AM, goto the gym. I see that its still there, and go back to bed.
You didn't get your homework done?
Ask to go get it in your locker. Do it there! If you get back late, you just do advice #1 at the top :P