Many water athletes wear nose clips when swimming to prevent water from entering their nostrils. Nose clips can help you be more comfortable and focused while in the water. If you wear nose clips for swimming in water sports, they can give your an advantage because you will not have to stop to clear your airway from water. Your nose clips should have a snug fit and be comfortable enough so you can forget you are wearing them. They should also be small enough so they don't interfere with your hydrodynamics.
Sit by the body of water where you will be swimming and unpack your nose clips.
Place the long band attached to the nose clips around your neck to secure them. If your nose clips do not have a band, consider making one for it because it could save you time looking for your clips underwater. A band also comes in handy when you are not using the clips but are not ready to put them away.
Rinse your nose clips to eliminate any debris that could prevent them from adhering to your skin. Most nose clips are made of latex or silicone and can come with either a metal or plastic clip. The material your nose clips are made of is your personal preference based on how they fit your anatomy and comfort expectations.
Secure your nose clips around your nostrils. They need to be tight enough to prevent your clips from falling off too easily but loose enough so that it doesn't hurt your skin.
Swim as you normally would for a couple of minutes to test any leaks or discomfort stemming from your nose clips. Once you feel they are securely fastened and have no leaks, you are ready to swim without any problems of having water go up your nose.