I guess this is a question in the mind of every young person, how do I chose the right life partner. The first step towards choosing the right person is knowing yourself. Before you can choose the right person, you have to know yourself in order to know what kind of person will best suit you.
To know yourself you need to know your creator (Who is my Creator? God Gen 1:27) because only through Him will you fully discover yourself. You need to know the purpose for which He has created you (According to a Jeremiah God Knows us. He knew us even before we where born and he has a purpose for us Jer 1:5).
The partner you chose is will determine what your future will be like. This why it is important to find your purpose. Your purpose will determine your partner. Your partner will either help or hinder the accomplishment of your purpose.
Once you know your purpose the next question should then will be how do I know if this person will help or hinder my purpose. One thing you could do is to ask the person his/her goals. Apart from asking the person in question, their is no much you can do. However asking the individual does not guarantee the right answer.
The question of knowing if a person is right is more than meets the eye. It has nothing to do with the looks or material possession. The only person that can answer this question is the one that knows the future. The one that knows the end from the beginning. The one that created every man.
Rather then doing the choosing, let Him chose for you and you can be sure you have chosen aright.
One of his promises for us is to direct us ps 32:8, He is not a man that is will lie.