Foreign policy is, for Japanese, neither active nor reactive but rather represents a quiet, low-profile, gradual style that allows Japanese to effectively pursue its policy agendas.
Foreign policy is, for Japan, such that it is not necessary for Japanese to act positively, because it can reap considerable benefits from the existing international orders.

Foreign policy is, for Japanese, not so much passive as strategically responsive. External stimuli may provide the initial push, but Japanese then incorporates the stimuli into its own policy objectives and fashions a policy that may or may not respond directly to the intent or wishes of that stimuli.
Foreign policy is, for Japanese, minimalist, or a kind of 'coping', meaning it proceeds by opportunistically assessing the international situation carefully, methodically weighing and sorting out each alternative, waiting for the dust to settle on contentious issues, achieving domestic consensus and adapting to the existing situation with the fewest risks.
Foreign policy is, for Japanese, purposeful and skillful. Japan uses overseas development assistance (oda) policy to contribute to a rapid rise in Japanese's standing in East Asia as a strategy to embrace the region in a complex web of personal, governmental, and cooperate ties all united under the ubiquitous banner of economic cooperation.
Foreign policy is, for Japanese, not passive, but rather a purposeful, shrewd, skillful, and single-minded interest in securing economic and political interests (inducing economic and military security, rapid modernization, great power status, and world recognition of its accomplishments).
Foreign policy is, for Japan, such that it does not make the rules in the world community, but simply tries to adapt to them and, if possible, excel at playing the game. When faced with difficulty, however, Japanese tends simply to ignore or reject those rules altogether.
Foreign policy is, for Japanese, a translation of economic power into political influence in what might be called 'leadership by stealth'.