Doubt in a text completion question

GRE Verbal Problem Solving
1

I’m facing problems with this question, pls help me out.

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2

Can you elaborate your problem.

Here is how I will tackle it:

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3

How exactly did you figure out the first blank?

4

Look at the description: intensely present (you notice him) + curiously detached (he doesn’t care who’s around)

5

Oh alright. Thanks

6

for first blank the clue is finesse and understatement because finesse is a direct synonym of panache and understatement (reserved) is a direct synonym with undemonstrative thus,

finesse and understatement == undemonstrative panache