I've been recently been recieveing an influx of people who are trying to "correct" my technique. Usually I just nod my head politely and then go about my thing, but it seems that they misread it as "Thank you, you clearly know more than I do, please have an opinion on everything I do". Most of the people who work out in the weight room are football players getting ready for the next season, and so they have a common way of doing a certain movement, as taught by the coach. The problem is that when they see something different they feel the need to comment. I thought I would just ignore it but today it seems that everyone needed to say soemthing about everything. For example, the coach came over to say I was BB curling wrong. I moved on to a superset between DB curls and cable curls. The idea was to heavy on the first, lighter on the second to hit both ends of the spectrum. Halfway some guy needs to comment that I'm going too heavy. Later, I do some close grip partials on the bench to keep the tension on the triceps, and another guy tells me how I'm slacking off becuase the bar didn't hit my chest.
My question is how do avoid this in a constructive manner? The "Smile and nod" doesn't work, I don't want to take 2-3 minutes explaining what I'm doing everytime a guy comes up to "correct" me, but I don't want seem rude. Any thoughts?