There are two ways to prove yourself. First, the spontaneous action: a situation arises in which the target needs help, a problem needs solving, or, simply, he or she needs a favor. You cannot foresee these situations, but you must be ready for them, for they can spring up at any time. Impress the target by going further than really necessary—sacrificing more money, more time, more effort than they had expected. Your target will often use these moments, or even manufacture them, as a kind of test: will you retreat?