Dear Michael,
How are you these days?
I am the girl who met you this Tuesday afternoon and we took a photo togather.My name is ***.It's my pleasure to know you and took a photo with you.You told me you that you will have a business in ChangChun.Good luck to you and I hope everthing goes well!
Cheers,
XX
差不多这样可以 还有作为大人提醒你下,不要觉得老外都是大好人什么的,不要透露太多个人信息 不要过密接触.题外话.