Our congregation follows a liturgical model (set prayers and events during the service). Here is the common "pay attention" statement (the "Sh'mah"), often said when entering or exiting the home, or the synagogue.
Sh'ma Yisrael, adonai, elohe-nu, adonai echad
baruch shem, kavod, malchuto l'olam vaed.
Hear Israel, (the) L-rd, Our G-d, (the) L-rd is One [...from Deut .6:4]
Blessed is (his) name , (whose) glorious kingdom lasts forever and ever. [... 1930's Orthodox Prayer Book]
[Alternative: Blessed is the name of his glorious kingdom forever and ever [... 1984 Armed Forces Prayer Book]
Here are two common prayers, called the 'Kiddush', as modified by most Messianic communities. Clearly, these set us apart from the Jewish mainstream to speak about Yeshua, but you ought to know and so here they are in transliterated Hebrew (the best we can do with the Latin alphabet) and their English equivalent. We bless G-d in both Hebrew and then follow up in English as seen. Our Kiddush occurs between the main service and prior to lunch (oneg). Visitors who disagree are not compelled to say these or any prayers. Prayer is us speaking to or blessing G-d from our heart, not rote unthinking words.
Blessing over the WIne/Juice (your choice):
Baruch atah, adonai, elohe-nu, melech ha'olam, ... boray p'ri ha'gafen
v'natan la-nu et Yeshua Meshihe-nu, .... ha'gafen ha'emet.
Blessed are you, L-rd, our G-d, King of the Universe, ... who creates the fruit of the vine
and gave us Yeshua our Messiah, ... the true vine.
Blessing over the Bread:
Baruch atah, adonai, elohe-nu, melech ha'olam, ... hamotzi lechem min ha'aretz
v'natan la-nu et Yeshua Meshihe-nu, ... ha'lechem shel cha'im.
Blessed are you, L-rd, our G-d, King of the Universe, ... who brings forth bread from the earth
and gave us Yeshua our Messiah, ... the bread of life.