Lay the dollar bill face up
Fold it in half lengthwise
Unfold it
Fold the top left corner down to the center crease
Fold the top right corner down to the center crease
Fold the bottom left corner up to the center crease
Fold the bottom right corner up to the center crease
Fold the bill in half along the center crease
Fold the left side inward to shape one top curve of the heart
Fold the right side inward to shape the other top curve of the heart
Tuck and flatten the edges to refine the heart shape
Press all folds firmly to set the shape