<human>: As the title states, I'm a 31 y/o male and I have no idea how to proceed past the first few dates with women. I don't quite understand myself, I'm comfortable around women when nothing is at stake (e.g. just hanging out as friends, or in more formal situations) and can converse for hours with women without awkwardness and such. However, I have no idea how to behave socially towards a woman if we are becoming intimate.  
  
A recent example: I was seeing a woman for about a month, things went well, we seemed to like each and got along together when we were alone, but as soon as the relationship (or whatever it was) developed to the point of us openly expressing our intimacy with each other (holding hands in front of her friend/kissing in public/etc...) I clinched up, lost all my confidence, could not think of a thing to say, and, sadly, I'm fairly certain her ship sailed on me.  
  
So, if anyone has experienced this, or has any insight, I welcome it, because at this moment I have no idea what to do! Also, thanks ahead for your replies.

Can you condense the text into three sentences or less?
<bot>: I'm comfortable around women, but, once intimate/once the relationship develops further I lose all confidence and clinch up! Need Help!