Your appearence.
1. You must have nice clean shoes.
2. Try and wear clothes that are colourful. Blacks, whites are so depressing. Try to have a variety of colours. If you havent got alot of colours go and find your best girl friend who you trust, save up, and do some shopping.
3. Always wash your hair and have white teeth.
4. You must smell nice. It is essential. No girl will date something that smells like trash. You can still smell nice without splashing out.
5. Take pride in your appearence. Introduce yourself to the mirror and ask yourself would you date him?
That is all purely subjective - especially the first two.