Hi:
usually, we did not say ' Happy Spring Festival ' first , I mean : when Spring Festival is coming or has been coming ,we firstly say "guo nian hao" (过年好) or "gei ni bai nian le"(给你拜年了) And then we say "zhu ni xin nian yu kuai"(祝你新年愉快) "wan shi ru yi"(万事如意) or other beatific words.