Limited experience here... but I'll let you know what's worked for me.
I'll drive around looking for doves in the sky or on nearby power lines (fortunately, there are some decent public lands around which I can do this). I then try to find an area with a small clearing... preferably with relatively short/sparse grasses. This last part is important since my dog is notoriously bad at finding dead doves. Just remember that like other critters, doves need food, water and a place to sleep. If you can position yourself between a couple of these spots, then they'll come by eventually.
I'll then set up a 5-gal bucket, sit down on it and wait. Most of the time, the best shooting I've found has been within the last hour of legal shooting time. If it's your first time out, spend a while carefully watching everything that's flying. Up here, we get lots of grackles and red-winged blackbirds. Dove are very distinctive, but it took me a couple of times to be completely confident at ID'ing the birds. Here's a hint: if you're not completely sure what it is, then it's out of range anyway.
Most of the time, I'll see either singles or small groups (2-3 birds) coming through. Shoot 'em, get 'em and stop when you hit a limit. It's easy.
If it's really hot outside, then I'll bring a cooler full of ice in my truck, so that I can cool the birds down quickly.
As far as gear... anything that kind of blends into the background will work. I've worn camo, and I've worn khaki slacks with a forest green polo shirt. Both worked fine.
Dove are small and don't require a whole lot of killing. I've been really pleased using 12ga 1 oz target loads at fairly high velocities (the type of shells usually marketed for sporting clays). Either #8 or #7.5 sized shot works great. Some folks like more open chokes, but I've had best success with modified.
Don't sweat it too much! It's not rocket science... and it sure isn't deer hunting. Just go out, give it a try and have fun!
BTW, if you get bored sitting around and see some doves sitting in a tree... there's no rule saying that you can't sneak up and flush 'em.
Oh yeah...
Since you're in Texas, you may want to try
hunting naked on a windmill .