Capital O and small o are both one stroke. Start at the top, curve back to the left, go round the bottom, come up the right side, and close the circle

Big M takes 2 strokes in Handwriting Without Tears: a tall line down, then hop back to the top, slide down to the bottom line

J is the letter that looks back. Its hook curls to the left, while almost every other letter reaches to the right. That one detail is