URGENT A short story.( A homework from my teacher ,I have to hand it in it this evening) Isaac was swinging on the front gate, trying to decide whether to walk down the street to play with Verna, her best friend in fifth grade, when she saw a tramp come up the road. “Hello, little girl,” he said, “Is your mama at home?”  He had an odd-looking appearance, with an scrawny figure, long disheveled hair that touched his stooping shoulders,and flecks of gray in his beard . His face was dusty,his coat was muddy and torn, his toes were almost shown through some holes in his worn-out straw sandals. It seemed that he had suffered from hunger and poverty for a long time. Issac stared at the tramp for a moment, then opened the door to let him in. When Issac’s mother went out of the house,she recognized the tramp whom she met last week near the doorway of their home,she remembered giving him some food at that time. “Lady, could you give me something to eat？”He asked. “All right. Please wait for a moment.” The man sat by the gate slowly, his head held stiffly, his eyes staring blankly into the distance.In a little while Isaac's mama went out the kitchen and handed him some bread and a big meat pie with generous chunks of pork.She gave him a tin cup of milk. "I Thank you,lady,"he said. He gobbled down the food and drain the cup. Then he stood and left through the gate. "Sir, where are you going?"Isaac asked naturally. "I dunno, just down the street,keeping on going and maybe someday find a home and settled down,"he leant back on the gate and took a heavy sigh,then gave her a hopeful smile.His eyes were deep, honest, infinitely luminous. Isaac inexplicably moved from inside arises spontaneously. Outside it was only twilight ---a lovely yellowish-green twilight with a clear-blue cloudless sky;the air was full of sweet summer sounds-sleeping birds twittering, freakish breezes, far-away voices and laughter.......

How to describe a tramp? Such as "His shaggy hair hung below a shapeless hat, and his threadbare shirt and trousers had been rained on and slept in. He smelled like a bonfire". It is a homework from my English teacher, writing a short story about a tramp and a little girl,I need to make the story coherent,attractive, meaningful, and educational, with a complete structure and well-chosen details, and most importantly, with a surprising end.  I think that the tramp shoube be a man who make his living as a wandering begger ,and I don't know to describe his looking.I am kind of bit poor in English,and can someone give me some suggestions about how to write it?