Flexible Components of Situated Talk (Edwards)

I have been working on the readings for my mini-lit review and I came across a quote/idea that I am hoping that you can help me understand.  I think that I have it, but I am not sure.

‘Language as action’ (Wittenstein, 1953/1958).  'It is not a matter of proving or disproving the nature or existence of real minds or what children as individuals ‘really’ think or learn, but rather of taking a different perspective on language, which examines verbal conceptualizations as flexible components of situated talk' (Edwards, 1993, p. 209).

I think that I understand the idea of language as action.  We are all doing something with our language even if we are unaware of what it is that we are doing.  You have spoken in class about different things that we do in conversations that help us accomplish different things in our conversations.  You stated that we aren’t being manipulative or anything, but instead we are unknowingly accomplishing something.  For example, one of my classmates (I think Jessica) stated that she never could figure out in DP how you knew when she wanted to speak until she read about breaths role in conversation (looking for an in).  What does Wittenstein or Edwards mean by ‘flexible components of situated talk’?  Is it just simply like the breath example?  Is it those moments that we have in our conversations (next-turn responses, breaths, pauses, etc.) or is it something else?