Being late is no longer fashionable, just rude!. Your date wants to feel like you have made an effort. Turning up late will just give the impression you could not be bothered.
Talking about an Ex is a big no-no. This can give the impression your either still in love with your ex. Or you are all bitter and twisted about breaking up.
If you find you really like your date and you think they feel same, take it slow. Talking about future hopes and dreams can be a good thing. Naming your children and discussing wedding venues is not going to get you a second date.
Nerves can often make people talk to much. Allow for natural pauses in the conversation. Unless your date looks bored or has fallen asleep, small silences are not always a bad thing.
Be polite and offer to pay your half. This gives the impression your independent and you have not just turned up for a free meal/movie.
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