This might not be a good advice and ISFP might not even noteice you,but this type of people like when someone does the logical conclusions for them. Explain to them something related to human character or nature logically and they will listen to you. At least I have noticed something like this when one ISFp woman talks to an ENTP guy. It also works with ESFjs. Do ISFps here agree with me on this or am I misunderstanding them?