Mostly, I build. But sometimes, I dump my entire inventory into a chest, and run off in a random direction until I find a good,(And very distant.) place to build. It spices things up a bit.
Cool. But once I actually visit every biome, it's hard not to notice that piece-of-terrain-X is completely identical to piece-of-terrain-Y. If it spices anything up, then that spice is probably Taco Bell's Mild Sauce.