To friends u can say 身体健康 To Ur classmate 学习进步 To elderly people 福如东海 寿比南山 To Family 阖家幸福 and soooooooooo on ~!@#$%^&*()_+

如果是很好的朋友，你可以写你想对他说的话，正式与非正式都可以，如果是给长辈，要加上身体健康或是福如东海寿比南山(it is a proverb) If he/she is your friends,you can say whatever you want,if he/she is elder,you'd better say something like “Wish you a good health"

身体健康，万事如意，学习进步，家庭幸福

如果是自己的好朋友，就祝他（她）生日快乐，还可以写上其它祝福的话。如果是长辈或长者，可以加上祝他（她）健康长寿之类的话。 Can we help each other, i help you study Chinese and you help me improve my sopken English?