Well said!

I'll just add that the book What Every Body Is Saying is quite good at illustrating what various ways of addressing SNS dominance look like. The author frames it in terms of "limbic activity," but it's basically the same beast. There are a few details in that book I'm not convinced of (e.g., I haven't been able to use people's feet as an indicator of their honest intentions), but the majority is quite good and can make it easier for you to look for important cues that others are sending you about their states.