How do you properly inflate a bicycle tire with a Presta valve?

To properly inflate a bicycle tire with a Presta valve, follow these steps:

1. Unscrew the small nut at the top of the valve to open it.
2. Attach the pump nozzle securely to the valve.
3. Pump air into the tire until it reaches the desired pressure.
4. Remove the pump nozzle and tighten the nut on the valve to close it.
5. Check the tire pressure with a gauge to ensure it is at the recommended level.