And your ? is ..... ... What can you do about it ? A few things, but exactly what would work best in your mouth is hard to tell without an exam. Make an appointment with a local dentist for a consult.
This is normal. Many people have small gaps between their front teeth. Most likely most other people do not notice it hen they look at you. This is only a problem if it bothers you. Several options are available if you really want to go through the time and expense to close this gap. Options include orthodontic treatment, composite build ups and veneers. Your dentist can help you chose the best option forbyou.