Sheniyeh Lerosh Velo Lezanav - שֶׁנִּהְיֶה לְרֹאשׁ וְלֹא לְזָנָב
Pronunciation: She·ni·yeh Le·rosh Ve·lo Le·za·nav
Literal translation: Shall we be a head and not a tail
This is one of the most popular blessings on Rosh HaShana here in Israel, so if you want someone to think that you know your Hebrew, greed them with Sheniyeh Lerosh Velo Lezanav. They're bound to be impressed.