You can't. So just drink lots of alcohol until you get over it.
I'm told that helps in similar situations.
You find out via their profiles.
Ok. I'm breaking out the G&T, wine, sake & beer. You're all invited.
This looks to be fun.
And damn. Who minused me for my avatar pic. *grumbles* I don't think I'll make it past today.
Edit: Whatever: if you look on your left, you now have a weighing scale icon below your avatar. You can give folks points or take away if you like their posts (or dislike them) by clicking on their scales. You can see your own points on the User CP, as well as comments (anon. though). The little green rectangle below the number of posts also shows what points the others have. Hope that helps. . .