Dress As a Substitute Teacher

This is the way you can dress like a substitute teacher and not get caught.

Steps

Notice what your teachers wear daily. Most especially, the younger ones.
Go to the store to find clothes that would look age appropriate. Try to even find heels that you can walk in, that way you will look taller.
Don't go to school in those clothes. Go change in a bathroom or an empty room and hide your real school clothes.
Either get a friend to take the bag with your clothes in the bag to take it to their locker or you can trust to keep your clothes in the bathroom or empty room if you think nobody will steal them.
Get work papers. Try to get attendance papers. Put some posted notes of there and carry around a folder with papers in there.
Walk around like you know what you are doing when you have them all. Try to make/find a name card that has your picture on it and either your real name or a fake name and hang it from your neck.

Don't forget, if a teacher or principal says,"What is your name?" Say the name that is on your name card.
Have a teacher that is absent, say you are subbing for that teacher.