Body Language & Dialogue Cues

I am currently taking an online course by Margie Lawson (www.margielawson.com) on writing body language and dialogue cues.  Wow!
I never realized how many head nods and bland smiles I use in writing.  But now I’m learning a whole new arsenal and it’s so exciting.
For example, which seems more powerful to you:
Original:  She grinned.  “Yes.  She [...]