[header] How to photoshop tattoos on your body [title] Open the image of a person you wish to edit in photoshop. [substeps] Open photoshop by clicking on the icon or searching for it in the lower left corner where you should find the start menu. In the left hand corner click file =] open =] select, to select the image which you wish to open. 
[title] Open a second image containing the tattoo you wish to add. [step] Add this as a second layer on top of the person you wish to place the tattoo on.