1. Open the photo function on your mobile phone, and find and open the photos that need graffiti in the page.

2. Enter graffiti mode. Click the "Edit" option in the upper right corner of the page to enter the editing mode. Then click the three points in the upper right corner, and click the "Mark" option in the pop-up window to enter graffiti mode.

3. Graffiti photos can be painted with brushes and colors according to your own needs. You can also click the "+"on the right to add words, signatures, amplifiers and graphics. When doodling is finished, click the "Finish" button in the upper right corner to save.