Summarize this article:

Once you’ve completed all of your school visits and trial classes, it’s time to go over everything you’ve learnt and decide which school is the best fit. Consider your goals, the teaching style and the logistics of the classes. At the end of the day, it’s important to trust your gut and pick a school where you feel comfortable. If you’re ready to sign up with a school, take some time to sit down with them and discuss payment options. Some schools require you have a membership to their school while others may ask you to sign a contract for a specified amount of time. Ensure you are comfortable with the financial burden of signing up.  Many schools will offer a shorter contract or longer trial period. If you’re not ready to commit to an annual membership or contract, enquire about signing up for a shorter amount of time to try out the school first. Ask about ending the contract or membership early. In case something happens that causes you to need to put your martial arts training on hold, such as an injury or loss of job, ask how that would work. Once you’ve made the decision to sign up, it’s time to get ready for your first class. Ask the school if you need to come prepared with a uniform or any specific equipment or supplies. You should bring a bottle of water, towel and change of clothing. If your school doesn’t require a uniform, it’s a good idea to wear loose fitting workout clothing.  Most martial arts are practised in barefoot but ask your school if you need to bring special footwear. After your first class or two, take some time to reflect and decide if the class is what you expected and if you're enjoying yourself. If the class turns out to not be what you're looking for, meet with your instructor to try and find a solution.

Summary:
Trust your gut. Discuss finances. Prepare for your first class. Evaluate the experience after your first class.