Carry how it's [STRIKE]comfortable[/STRIKE] comforting for YOU. And congratulations.
You're supposed to go to Walmart!!! Nearly all INGO "first time carry" stories involve Walmart, gotta keep with tradition!
Just about everyone goes through the same sequence of carrying. At first, it feels like you are doing something wrong and that everyone can plainly see the concealed gun. Eventually, you relax and with a bit of time you'll get to the point of feeling odd without a gun on you.
Don't touch it. You might as well open carry if you are going to touch your gun every five minutes to make sure it is there and still concealed.