"WHAT DOES IT MEAN TO BE A GOOD BUDDHIST?" - BEST ANSWER .... AND IT'S NOT RITUAL AND CEREMONY!

It's not by ceremony that you become a Buddhist. It is by committing to practice. Buddhists get caught in a lot of rituals and ceremonies, but the Buddha does not like that. In the sutras, specifically in the teaching given by the Buddha right after his enlightenment, he said that we should be free from rituals. You do not get enlightenment or liberation just because you perform rituals, but people have made Buddhism heavily ritualistic. We are not nice to the Buddha.  - Thich Nhat Hanh