How do you properly attach a bike pump to a valve to inflate a tire?

To properly attach a bike pump to a valve to inflate a tire, first unscrew the valve cap from the valve stem on the tire. Next, determine the type of valve on the tire (Presta or Schrader). For a Presta valve, unscrew the top nut to open the valve. For a Schrader valve, no additional steps are needed. Then, firmly press the pump nozzle onto the valve and secure it in place. Begin pumping air into the tire until it reaches the desired pressure, then remove the pump nozzle and replace the valve cap.