Like someone else said, we aren't sure about your exact need for info. If it's just general squirrel hunting, then I'll provide the basics.
Best time to hunt is early morning and late afternoon. Best type of day to hunt would be a cool still day. And if the ground is a bit damp, you can walk quieter, which is good. Squirrels have radar. Find an area rich in oak trees or pecan trees (or even pine trees) and hunt that area, after entering quietly and sitting, or standing motionlessly. Look for moving tree limbs, which normally would indicate squirrels moving from nesting area to feeding area - which is hopefully where you are now sitting. If I'm hunting for quantity, I use a 12 ga with full choke and number 6 shot. If I'm just hunting for fun, I use a scoped 22 rifle. Having a small pair of binocs with you is good, so you can find the little rascals peeking at you over a limb. Have a pocket or bag of corn or pebbles or acorns. Once you've shot one squirrel, the rest will hide. Wait 5 minutes, then pitch a few pebbles into the dry leaves. The squirrels (the least intelligent ones at least) will think their rivals are now back to eating and they'll come back out in clear sight - hopefully.
That info will get you started. The rest comes from experience. Enjoy yourself. Some of my best memories are from squirrel hunting with my grandfather when I was just a kid. That's where the pebble trick comes from. Grandpa was good. I swear he could spot a squirrel at 1000 yards (well...maybe 100 yards).