Proper concealment is .....
first find a gun that you can hide on YOUR body..doesnt have to be a KT P3AT to hide well, but a DE50AE probably wont work.
Choose a cover that gives you room to move, doesnt look COMPLETELY out of place, covers the gun well and is comfy.
Wear pants that support the gun well....the thinnest Dockers you can find with a 1" dress belt isnt gonna be conducive to carrying a gun.....thicker pants with alot of belt loops help ALOT
Get a good gun belt/holster combination. If you want to carry IWB look around and see what various holster makers are offering that you think will work for you. Most of my customers carry from 3.00-4.30 strong side and can hide anything they want, drive, walk, sit, shop etc and be comfortable and conceal their guns.
A good pancake will almost conceal as well but you need a longer cover....
Dont be afraid of spending some money.....you get what you pay for. A good belt and holster may cost you 150$ but if you do it right you wont have to spend anymore for a LONG time.
Shoot well.......