Before you decide to start with any type of sports betting in the USA, it is important to know what is allowable and what is not. Unfortunately, there is not a set rule that can be followed by all people since these types of laws change considerably from one location to the next. However, it is still your legal responsibility to actually know how to play to win. If you do not invest the time and energy into knowing the laws, you may find yourself with hefty fines or worse to deal with.
The best place to find out if you are able to bet is to simply contact your local police department and inquire about the legality of playing against other people for money. Sometimes, online ports betting is allowable. If you do not take into account the risks of the law, you may find yourself in trouble with it.