Begin by downloading Crossword Jam from the App Store. Launch the app and start with the tutorial, which guides you through swiping letters to form words. Each level presents a set of letters at the bottom and a crossword grid above. Swipe to connect letters in the correct order to fill the grid. As you progress, puzzles become more challenging, requiring longer words or less common vocabulary. Use hints or the spinner for help, and check word meanings by tapping completed words.