Some of the things I can help you with are..
- Help setting up an iTunes account
- Downloading apps
- Downloading music or other content
- Configuring your device with an e-mail account
- Backing up your device via iTunes and/or iCloud
- Setting up Find My iPhone
- Help using iCloud to find a lost device
- Help managing and organizing your apps
The above list are some of the main or major things that I can assist you with. There are lots of features for both the iPhone and iPad..
If you are interested in learning about other features I would be happy to help.