1) She observed the rules punctiliously.

2) This long-winded wordsmith "punctiliously shifts paradigms" and "expeditiously ensures the numerical veracity of weekly sales reports."

3) In some countries that is observed punctiliously. In others it is in effect voluntary.

4) Given the circumstances, his behaviour to Laura had been punctiliously correct.

5) And the nearest I can come to my ideal is punctiliously to pay my bills, be polite to my wife, and contribute to deserving charities: and the program does not seem, somehow, quite adequate.