@david_chisnall exactly.

And further language is deeply contextual and not just about the previous words - about the context of a conversation, about the social status and physical/visual and other sensory cues that inform how we interpret words as does what each party knows about the others

And even with all those other contextual cues people misinterpret each other all the time (was that person I met just now hinting that they like me. Is my partner serious just now or being playful)