The parts of Whole Brain Teaching that really show up in a lesson (as opposed to management routines) are gestures and Teach-OK. Gestures are a natural with vocab, as already discussed, but don't forget that you teach vocab in every subject. For example, nearly every math lesson has at least one vocab word in associated with it, so definitely use gestures there too.
I also include where I plan to Teach-OK in my plans. This can really help you visualize the pacing of a lesson while writing it. Check out
this thread for some discussion on chunking difficult concepts. I'm definitely finding that figuring out the "Teach-OK-able" (OK, I realize the jargon is getting ridiculous) chunks prior to a lesson is helpful.
As for sub plans, I definitely agree that putting a quick primer on some of the simpler Whole Brain Teaching strategies with them would be a good idea, but if your sub is unfamiliar with Whole Brain Teaching, it probably wouldn't be wise to expect them to use gestures and do Teach-OK. Class-Yes, rules, and Scoreboard should be easy enough for a sub to pick up though.