Those little guys always run up and down the outside of my house. Some are green, some brown and one of them looks kind of blue-ish. Also some of the have those flappy-thingys(dewlaps?)while others have a raised spine thing?? Oh btw i live in central Florida, about 30miles NW of Orlando.
That is a brown anole (Anolis sagrei) The ones with other colors are most likely other species of anole, most likely green anoles (Anolis carolinensis