What happens next in this paragraph?

How to make a bootable ubuntu with usb drive using unetbootin
Select your desired distro from the drop down menu, which is located in upper left corner of the unetbootin menu.
Scroll down and up menu to see offered distributions.
Select your desired version of distro from the drop down menu, which is located in upper right corner of the unetbootin menu.
Scroll down and up menu to see offered versions. Find where your iso disk image is located.