Suppose you have a friend who is a book worm write a letter to him persuading him to take part in games.

36 D Lower Mall
Lahore
Feb 4, 1997
Dear Afzal
It is a long time since I have received a letter from you;. I should have called you a lazy boy had I not learnt from your brother that your were studying hard. He told me that you were working more than your health would allow you to and that of you hardly found any time for taking exercise. I also learnt from him that your fellow students called you a book worm and that they had found it impossible to persuade you to take part in the college games.
I am glad that you are taking your studies so seriously. But I am afraid you are doing all this at the cost of your health. You do not realize that if you want to get proper work from your brain you must keep yourself physically fit. I hope you have not forgotten the well known proverb A sound mind is in a sound body. Hence there arises the necessity of taking a certain among of regular physical exercise.
Do take my advice in the way it is intended and take up some games as tennis badminton and apare some time for it every day. It will not be a waste of time. After a little vigorous open air exercise you will return to your work in the evening with a much clearer head and greater zeal of work than at present.
I hope you will take my advice seriously and sent me a note saying that you are taking part in games and other activities of the college.
Yours sincerely
Babar Idrees