During the first line of the Shema, we cover our eyes to help us concentrate as we say: 

 שְׁמַע | יִשְׂרָאֵל, יְיָ | אֱלֹהֵינוּ, יְיָ |אֶחָד:
Sh'ma Yisra'eil Adonai Eloheinu Adonai echad.
Hear, Israel, the Lord is our God, the Lord is One.

In an undertone:
בָּרוּךְ שֵׁם כְּבוֹד מַלְכוּתוֹ לְעוֹלָם וָעֶד
Barukh sheim k'vod malkhuto l'olam va'ed.
Blessed be the Name of God's glorious sovereignty for ever and ever.


If you prefer a God-optional version, use this time to reflect on what statements are the pillars of your beliefs, or use this Shema written by Morris Sukenik:
Shma Yisroel, Ha-olam echad, Ha-enoshiut echad!    Hear, Oh Israel, the Universe is one, all humanity is one.


Type of Custom: Barchu & Shema

Holiday/Event: Shabbat