The new moon is the moment the Moon and Sun meet in the same sign. The sky is dark, and traditionally this is a time for beginnings: planting, planning, setting an intention before anything is visible.
Keep it small
Choose one intention, written in a single sentence, in the present tense. The sign of the new moon can guide the theme: an Aries new moon for courage, a Taurus new moon for money and the body.
Then let it be
A new moon intention does not need daily checking. Come back to it at the full moon, about two weeks later, and notice what has grown.