How can I expand on the internal memory on my One Touch Pop icon?
You can't expand the internal memory of the phone, but you can perform some tweaks. However, all available operations require ROOT. You can root your phone with the help of tutorials posted on the Internet. Use the following link to access the results with the rooting guide for your phone: https://goo.gl/Nb1hjL
After the phone has been rooted, you can then partition your SDcard to link the newly created partition as system partition to install apps, etc.