Drag the white (cue) ball or the target (orange) ball. Click a pocket to choose it. The app draws the ghost ball (where the cue ball must be at impact), the aim line (cue → ghost), and the strike point on the cue ball (where the cue tip must contact). Use Auto-Aim to align the cue to the ghost.
Tips: Click & drag the white to position. Click a pocket (on table corners/rails) to choose where you want the object to go. Use Auto-Aim to set the aiming line automatically. Shoot to test — watch the object ball and pocket result.