Which preposition to use with undemonstrative

in Occurrences 4%

The mountain people are undemonstrative in speech and action; and that "my dear" seemed wonderful.

as Occurrences 3%

" They thanked the captain when he rejoined them, but he remained as silent and undemonstrative as ever, so they took their departure without further ceremony and returned to the shore.

to Occurrences 1%

He has always been most undemonstrative to me.

with Occurrences 1%

Ethelyn was very pretty in her cool, cambric dress, with a bunch of sweet English violets in her hair; and at sight of her the man usually so grave and quiet, and undemonstrative with those of the opposite sex, felt all his reserve give way, and there was a world of tenderness in his voice and a misty look in his eye, as he bent over her, giving her the second kiss he had ever given to her, and asking, "How is my darling to-night?

Which preposition to use with  undemonstrative