I used to carefully pull down husks, take of the silk, wrap 'em back up, soak and then grill for 45 minutes. Then I read somewhere it actually tastes better to grill without husks and cooks much faster.
Pull off husks all the way, so you put the corn cobs right on the grill and clean up silk just like if you were going to boil them. Rub them down with a bit of olive oil, and then grill on medium, turning pretty frequently. Grill until the kernals get a bit more transparent looking - almost like a deeper color yellow and then take them off - usually about 20 minutes. I like to add salt, cayenne pepper and a squeeze of lime to my ear, but my DH and kids just add butter and salt. It's easy and delicious this way.