One Friday, 12-year-old Janet was going to stay all night with her friend Amy. They had to Mr. Dawson’s house on the way to Amy’s house. As they got, Janet saw him sitting in his front yard andthey should cross over to the other side of the street. Janet wasof the strange old man because of the stories she’d heard about him. Amy said not to. Still, Janet was growing more nervous with each step closer to the old man’s house. When they got close enough, Dawson looked up with his usual frown (皱眉头). ,when he saw it was Amy, a broadchanged his entire face as he said, “Hello Miss Amy. I see you’ve got a little with you today.” Amy smiled back and told him Janet was staying and they were going to listen to music and play games. Dawson said that sounded, and gave them each a freshly picked off his tree. When they Dawson’s house, Janet asked Amy, “How come he was so to us?” Amy that when she first started walking past his house he wasn’t very and she was afraid of him, but shehe was wearing an invisible (看不见的)smile and so she smiled back at him. After some time, he started smiling real smiles and then started to her. Now he alwaysher an apple, and was always very kind. Smiles are contagious (感染他人的). If you pretend he is smiling an invisible smile at you and you smile back at him, he will really smile.