A 640 is small enough, it shouldn’t be too hard to conceal. One thing that I have found, is that there are a LOT of people that worry too much about “printing” when carrying. Some states are more strict about printing than others. Don’t know how strict Texas is.
The point here is that while YOU
know you are carrying, the slightest “bulge” can drive you up a wall. But to be realistic, when you are out in public, almost NO ONE
else will notice a slight bulge.
Keep in mind that I am not a “clean cut” dude. I have a kind of grizzly biker guy appearance, so I can draw attention just walking into, well, about any place. I was recently out looking for a new financial institution. I went into quite a few banks carrying as described below, asking the security guard (when there was one) who to talk to about opening up a new account. Talking with numerous bank personnel, and walking all over these banks, no one noticed. One would think that the security guards, and bank personnel, would be looking for, and trained to spot, people with guns. As long as you do not draw undue attention to yourself, you’re the only one that is going to know
that you are carrying.
It took me a few tries to find the right holster. When walking, I wear it outside, on the right hip, on the belt, slightly forward of the side. I needed a holster that kept the firearm “in close” to my body, and carries it a bit low (so the grips do not stick up too far and show through the shirt) and so my shirt would hang over, and cover it. Do not put your belt through the one “side” loop on your pants. That way you can “adjust” the holster slightly back and forth from your side to a little forward, to get the most comfortable, and then the most concealable, carry position. Like when you are getting in and out of your car. (In the car, it’s on the side. When getting out of the car, push it slightly forward)
Then I bought t-shirts a size or two too big. My “roll” (so to speak, LOL) sticks out farther than my belt or holster, and the t-shirt hangs loosely over it, and covers it well, since it is extra long and not tight. It probably helps that I don’t care if the t-shirt looks like a tent on me, or that it hangs down off my shoulders farther than a tight fitting one would. It covers what I am carrying, and that is the important part. They have to be fairly good t-shirts, can’t be the “see through” kind. When the weather is cool enough, a light sleeveless shirt, not buttoned up, covers everything up. Colder weather, heavier shirts, never a problem.
If all else fails, a fanny pack works for some.