The more self-expressed you are, the better you will feel about yourself and life. Live your best life. Do not wait to have a partner to live the life you want to live. Do not waste your time making excuses as to why you are not living the life you want. Shine, from the inside.
Different things make different people shine.
However, what's guaranteed to give you a glow is deeply satisfying activity or endeavor. Open your heart. Be open to relationships of all kinds, connect with people for the purpose of connection, be truly interested. Learn to listen. Learn to listen to what people are saying instead of what you think they are saying.