Once you have downloaded the RedHotPie App or visited the RedHotPie website, you just need to click on Sign Up. You'll then have the choice to create an account using a valid email address, or join via Facebook. Only your Facebook login details will be used to create an RedHotPie account and we DO NOT post anything about RedHotPie to your Facebook account.
You can add as much detail to your RedHotPie profile at the sign-up stage, or if you're super keen to start using RHP, you can skip a number of stages and add information any time later on.