Dear Mike
I am very happy to receive your letter.I know you have a little problem to get along with other.Here is some of my advice.Firstly,Have a smile on your face.Secondly,Look at her/his eyes when you are talking with her/him.Thirdly,nod when you listen ( Don't always talk about yourself).Fourthly,(be confident in yourself) raise your head when you walk.And stand still and relax.
Hope you'll get along with others better.
Yours
Liu Ning