If these are really the feelings which reign within you, the boy will see it, and they will exert a strong influence over him; but you can not counterfeit appearances.
A most effectual way to secure the good-will of a scholar is to ask him to assist you.

The Creator has so formed the human heart that doing good must be a source of pleasure, and he who tastes this pleasure once will almost always wish to taste it again.

To do good to any individual creates or increases the desire to do it.
There is a boy in your school who is famous for his skill in making whistles from the green branches of the poplar.

He is a bad boy, and likes to turn his ingenuity to purposes of mischief.

You observe him some day in school, when he thinks your attention is engaged in another way, blowing softly upon one which he has concealed in his desk for the purpose of amusing his neighbors without attracting the attention of the teacher.