gamerwidow I went to Tate Modern a few years ago with a couple of 11 year olds. I did notice a couple of people seemed to be reacting to my (quietly) talking about the shadows in Exploded - why the room was lit that way, why the piece were on threads, how we were part of the work as our shadows mixed, but dismissed it, as they were probably annoyed I was speaking rather than standing in silent reverence.
We got to a bit which had something like a curved bench. I reminded them they weren't allowed to touch it, but how about they followed the outline with their hand and see what that made them think of. Playing aeroplanes. As we walked into the next bit, I glanced back and saw some adults doing the same and smiling. I'd imagine they were thinking about childhood, playing in the park, grass and sunshine as well. I thought it was a very intelligent piece of work, to have a lump of grey concrete(?) make people feel/think of such things.
By the end of our day, I'd accidentally got a few people shuffling backwards and forwards to look at how a Pointilist picture changes with distance - not deliberately/overtly, but again spotted as we left. I liked that, as they looked happy and I'd guess that they might do the same at a later date.
Some art is about passive observation and being told what to think/feel, some requires engagement and interaction. Both are more useful if you approach them not just in terms of aesthetics, but what they could be saying/trying to get you to think about. I like both.