Summarize the paragraph in at least 3 detailed sentences.

passing: by Langston Hughes.
Dear Ma

I felt like a dog, passing you downtown last night and not speaking to you. You were great, though. Didn't give me a sign that you even knew me, let alone I was your son. If I hadn't had the girl with me, Ma, we might have talked. I'm not as scared as I used to be about somebody taking me for colored any more just because I'm seen talking on the street to a Negro. I guess in looks I'm sort of suspect-proof, anyway. You remember what a hard time I used. to have in school trying to convince teachers I was really colored. Sometimes, even after they met you, my mother, they wouldn't believe it. They just thought I had a mulatto mammy, I guess. Since I've begun to pass for white, nobody has ever doubted that I am a white man. Where I work, the boss is a Southerner and is always cussing out Negroes in my presence, not dreaming I'm one. It is to laugh!​