When I smile I have a gap on the side of my teeth, it's not in front, is there anyway to fix gaps? (if so) How do they fix them?

yes, this can be fixed, but how depends on different factors. The easiest and quickest way to fix a gap is to get veneers - they will immediately fill it in. Depending on the gap and your teeth, you may be able to have it fixed with a retainer you sleep in. Or braces - but not necessarily a whole mouth full of them - just a couple might be able to create the force needed to move your teeth. One thing that needs to be considered is why you have a gap - some people just plain do. Other times it is caused by missing teeth or too much room in your mouth. And there are several other reasons. But if you go to the time and expense to have your gap fixed, make sure that the cause of the gap won't make it reoccur!

I am not missing any adult teeth, it seems like two teeth on the left and right sides of my mouth are too narrow? I'm not sure.. thanks for the info.