Eating
A softer diet is recommended when you have braces on your teeth (soups, scrambled eggs, minced meat, chicken, pasta, rice, noodles, salads, and softer fruits). You can generally eat most foods, you may just need to cut them up smaller, take your time and eat gently on your back teeth (eg apples, carrots). Opt for softer breads rather than hard baguettes. Avoid chewing gums, hard sweets, and sucky sweets.
Brushing
You will need to brush your teeth more when you have braces fitted. I would advise brushing for 2 minutes 3 times a day. You will also need to use interproximal brushes and fluoride mouthwash to keep your teeth and gums healthy.