写给外国人的祝福语

How's it going ?（熟人）

hello
what happened(熟人）
how are you
I'm very happy to make frend with you .

　　Hello,
How are you?
Yours truly
Yours sincerely
Look forward to hearing from you soon

　　其实信头称呼后就可以直接插入正题了，
如果非要加上问候语的话也可以随意一点，
比如：
how are you?
how have you been?
i hope everything is fine with you.
hope you enjoy your day.
did you have a pleasant weekend?
long time no see, i miss you so much......
就像外国人见面喜欢谈论天气一样，
总之找个合适的话题然后切入正文就可以拉！