Most Bells, no, I don't get colorshapes. Even the ones who are only wish-warded I just get flickers from the ingot half, nothing from the witch side - it's technically two powers but they don't really work very well when one of them is blocked.

I can tell if people intend to keep things secret, and I have plenty of reaction time to, you know, not read those things - reading colorshapes is more voluntary than, say, reading text within my field of vision in a language I know. I also get much less detail for colorshapes that don't have to do with me or my immediate family. Mum is not really an "intending to keep things secret" kind of person, and is a member of my immediate family. I get stuff I'd probably sooner not know from her; that doesn't mean I learn the same things about anyone else. In most situations it's limited to - I can tell if somebody wants a hug, or wants me to proposition them, or for that matter wants to be left alone, and I don't think I'm bothering anybody obeying those colorshapes.