[header] How to add files to a memory stick [title] Locate your pc's usb port. [step] Usb ports are rectangular with a solid piece of plastic on the upper half of the slot and an empty space on the bottom. The port should have a graphic of three branching arrows pointing upward (or downward, depending on your pc) next to it. 
[substeps] If you're using a desktop, your usb ports are most likely integrated into the cpu, while laptop usb ports are usually on the left or right edges of the casing. [title] Plug your memory stick into the usb port.