I have to give a demo lesson in front of the schools English department.

The lesson is from a textbook but there is some flexibility.

The lesson is basically about describing people.

Any suggestions would be very much appreciated as don't usually teach from a textbook. I usually decided what material to teach myself.

Textbook pictures are attached. The listening texts are as follows:

Section A, 1b
A:Is that you friend?
B: No it isn't
A: What does he look like? Is he short or tall?
B: Well, he's really tall. And he has curly hair.

Section A, 2a,2b
Conversation 1
A) Is that your brother David.
B) No it isn't
A) What does David look like? Is he tall or short.
B) He's tall. He's heavy. And he has curly hair.

Conversation 2
A) Is that Sally?
B) No, it isn't.
A) Does sally have long or short hair.
B) She has long straight hair. She's of medium height and she is thin.

Conversation 3
A) Is your friend Peter short or tall?
b) He's short. And he has short hair.

Thank you very much for your help.