For going on Date. Generally many people make mistakes.
These thing should not be done when on dating:-
1. Never say Female dating partner that she getting fat, Seems fat in those jeans, ... No critical comment on her beauty/fitness.
2. Never ask him openely/ publicly for having sex. Even if she willing you can do but don''''t say her publicly.
3. Never say about Your another affair with any woman.
4. Never do RUINED your chances

Do these things to do Dating in a smarter way:-
1. Communicate with her in better way. Try to understand his feelings. Feel what she is feeling at that moment.
2. Keep some Emotional attachment, She will be attracted more for you.
3. Don''''t Say about your personal problems again & again.
4. Praise her what you like about her.

Happy dating