How to make a partition on a usb flash drive

First, why do you want to have multiple partitions on a USB drive? You can just use folders to keep files where you want them.

While I have never tried to make multiple partitions on a USB drive, I would imagine it is just like making a partition on a HDD. Have you tried with your Disk Management utility (I assume you are using Windows)?

The process is the same as for hdd's, but why bother on such small drives?