How do I properly inflate a tire with a bike presta valve?

To properly inflate a tire with a bike 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 onto the valve.
3. Pump air into the tire until it reaches the desired pressure.
4. Remove the pump nozzle and screw the nut back onto the valve to close it.

Make sure to check the tire pressure regularly and adjust as needed for a smooth and safe ride.