Make sure you compared such as having a notebook and pen having a working smartphone that can be used for research or laptop or tablet whichever one you choose to take notes and do research with. Also, you want to come in clothes that are comfortable but something you know u would wear to not be noticed and that you look the part for the job such as long pants jeans is fine and shirt with sleeves anyone with a lot of tattoos you can cover them up when your out doing the job in the office comfortable clothes no sandals no tank top shirts no bras showing or belly button respectful clothes. Always remember to carry your private investigator intern license with you at all times and be ready to learn. Having a car is needed but in so cases your boss will work with you so always stay prepared.