Milo studied Yossarian diffidently through the corner of his eye, hesitating tactfully.
He had no taste for sham, tact or pretension, and his credo as a professional soldier was unified and concise: he believed that the young men who took orders from him should be willing to give up their lives for the ideals, aspirations and idiosyncrasies of the old men he took orders from.
He had proved himself brilliantly under pressure, and he concluded the briefing with an inspiring peroration that every instinct told him was a masterful exhibition of eloquent tact and subtlety.
There are no more uses of "tact" in the book.
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He was a big, good man with a soft baritone, who ruled with easy tact a choir of repressed soloists, and who had an unerring memory for the favorite hymns of District Superintendents.