text:  and then float the concrete it takes a little skill you're going to have to do some research how to do this but essentially when the concrete comes off the truck there's stone that's embedded in it and as you spread it out with a shovel and a rake you sort of float it you shake it with a float a trowel it's like a look a big trowel and then the stones sink to the bottom of the concrete and sort of the cream comes to the top and that's what gives you that nice finish