First,
never, never, never use the clicker to attract his attention. It's strictly a MARKER ONLY!!!!!!! As has been said above, using it to attract attention is clicker abuse! If you need to attract his attention, use a dog whistle, clap your hands but
never the clicker.
Secondly, forget what other people think of you using a clicker! It doesn't matter what they think, it's BRODY who matters. I've had people ask me about the clicker but never noticed, or cared, if they look at me oddly, after all I'm not beating the dog or anything awful! So take your clicker along on walks please!
You use the clicker until the dog has firmly 'got' the trick (and trick can be sit/stay etc. not necessarily roll over, play dead etc.). And don't forget, Brody's still very young. He's what, about a year now? He's still going through his teen times and believe me even the best dogs can suffer from 'total and complete amnesia' during that period. It's normal! For example, my Rakins had a brilliant sit/stay and recall as a young puppy, then we hit around the six months mark and he developed total brain fade, complete amnesia. "Recall - eerh what Mom" He did still sit but oh brother stay - "hey what's that over there - must investigate NOW" that lasted for a looooooooooong time! I think he was over two before he started to regain his lost memory
But we still had 'moment's of forgetfulness for a while then suddenly "Hey Mom I'm soooooooooooo good look at my perfect stay!"
No two dogs are the same. Some take what seems like forever to become rock solid, whilst others will not really go through too much drama at puberty. Brody I feel, from all your posts, is one who's going through a lengthy teen time. My vet, and others, have actually said it can last until a dog is five years old! Thankfully all my dogs haven't take that long, but if they did, well you just have to be patient and keep on training.
With 'look' you can see if he's responded - he'll be actually looking at you - sure it maybe a fleeting glance but CLICK AND REWARD AND PRAISE for even the shortest of glances. Try using a lure and raising to your eyes and the nano second he looks at you, click/treat. Rinse and repeat!
Make sure the click is the second you get the response you're looking for - too long a space between the response and the click results in the dog giving you what he's done next. For example - ask for look and he glances up at you THAT'S THE MOMENT YOU CLICK - because by the time he's looking at what's happening over there - you've lost the moment click then and HE thinks "Hey that's what Mom wants - me to gaze into the distance or at the fly or........". You only have a very short space of time to click.
With the reward, at first it's one second before you reward and once BUT NOT UNTIL you're getting consistent results do you start to lengthen the time between the click and the reward. But the CLICK STILL COMES IMMEDIATELY THE DOG OFFERS THE RIGHT TRICK (and remember sit/stay etc. are basic tricks).
And remember, when he offers up a trick you're not asking for, he's TRYING to understand what you want! Again, be very clear and concise when training, if you're not sure or in even the slightest way give a misleading cue, he'll get confused and offer you what he THINKS you're asking for, so it's up to you to make sure you know what you want and give the right cue. We all make mistakes, even top trainers have made a boo boo, and they know it, laugh and let it go.
Dog training is fun but it can also be frustrating at times, happens to all of us. But the main thing to remember is that Brody will learn in HIS time not yours and mistakes are the trainers fault not the dogs! And if he still hasn't got a trick, then go back to basics and take BABY STEPS, very small steps. It can be a year sometimes before a dog finally 'gets' something even something very basic, because he may not like that one. Rakins took ages to 'get' drop, and even when he consistently 'got it' it was never a favorite trick of his. Hold on to your patience and keep training, you've got one very smart dog, he deserves your patience, time and effort. And don't forget he's watching your reactions, any sign of frustration and he'll both feel and see it. Dogs are very smart, they learn a lot from watching how we behave, they're really good at that, and will pick up every small nuance faster than we even realize we've given them that cue.