Sonny, being the silly horsey he is, won't listen in a bridle that has a noseband. It's fine due to all I really plan to do is western riding, but I would like to be able to put an english bridle on him and have him actually listen.
I put one on him and he's really only walk around...I could get him to trot, but he'd throw his head. He would not collect himself and his nose was way up in the air as if he's avoiding the bit...his nose was up all the time (even if I was neck reining).
I would through his bridle on with the noseband on him any chance you got. If you're working with him, or if he's out in his paddock (supervised of course). That way you don't make a big deal of the noseband and he'll just carry on. I'd even put the noseband on while you groom, tack up, anything you do with him, put it on so he gets used to it.
Hope that helped :)
I would start out with it on the lunge line. At first, put it on him very loose, where you can get a couple of fingers underneath it. Once he is fine lunging with it there, then tighten it one hole. Leave it there until he accepts it, and keep tightening it one hole at a time until he accepts it. Leave it at each hole for at least one session before you tighten it, though.
Then repeat the same thing when you are riding. You can actually put a cavesson on when you're riding western also. Just do it very very gradually and he should get used to it.
Also, check the placement on it. You don't want it too low, or he really may not like that. Keep the cavesson just beneath, and practically touching the bones on his face (for the life of me I can't remember what they are called). Most people put the cavesson on too low.
Here's a couple of pics to help show you what I mean. In the first picture with the halter, the noseband is sitting way to low. The blue line shows where it should always be (caveson or halter). The second one in the bridle is pretty close to perfect position. It could probably go up just a smidge, but it would be less than a hole adjustment.