text: Also by giving advice you can prevent people from getting hurt like if a guy walks to a store and buys something and it doesn't work he is going to come back to the store and fight the guy the sold him the item and then they both go to jail from fighting. Also if a parent comes to her friends house her freind can give her advice how to cook something maybe she doesn't know but her friend does and she can give her advice.Is it a good idea to let teachers use technology to describe students emotional expressions? To me I say that it is wrong to examine kids emotional expressions because teacher should worry about their ow feelings. They shouldn't be worrying about other students.