Here are the steps to use the FreeStyle Libre system:

1. Apply the sensor to the back of your upper arm.
2. Scan the sensor with your reader or phone.
3. Get your first reading.
4. Scan your sensor as often as you like, even through clothing.
5. Check your glucose levels anytime you want.

You can also watch video tutorials on how to use the FreeStyle Libre system on their website .