I have been asked this question many, many times. And there is really no one good answer to this because each person who asks comes from different backgrounds, thus, experience different circumstances to which the question was raised. However, I can say this. Good math students have many different characteristics and variety of study habits. But they also do have many commonalities amongst many of which make them a good students. These are some examples of those common habits or good practices, but definitely not limited to only these.