We all have experience making a gaffe or two on a first date. Maybe we've arrived late, accidentally tripped, hesitated when asked a personal question, or inadvertently burped. While these are all unintentional slips, some people make a far more damaging mistake -- one that precludes the possibility of a second date. If there's something that can send your date running for the hills in no time, it's moving too fast.  Here are just a few examples of ways that someone can overdo it on a first date: Getting touchy Trying to plant a kiss too quickly Mentioning meeting each other's friends and parents Discussing long-term plans, like becoming exclusive and getting married People have to remember that this is a first date! Take a deep breath, relax, and enjoy yourself without getting all wrapped up in the serious stuff so soon.  You will cross that bridge once you get there, provided that the two of you are compatible and wish to continue seeing eac...