(My entp was on the phone with him while he was driving with his kids on vacation. At one point he went totally ape shit crazy and yelled at the kids for about a minute then hung up on her. My long lost twin.)
Amar is very skilled at Fi nudging and I can sorta do it but only to IXTJs-then just glowing at them, so they glow too. Or by touching the INTJs-like gently on the face or with a hug. So Fi can induce Fi in others.
INTJs seem to be able to induce Ni in others as well, just via the words you are using, the tone. This works for my hyper Ne brain but not certain how widespread it is among others. This Ni-slowdown can last for hours and is very relaxing. It isnt Si though-that feels like work to tap into.
I can help my ISTJs use Ne a bit more when they get really stuck in Si land. I help them see all the positive possibilities.
I think the Fe users can induce Fe glow in each other too, but cant speak for them.
It's interesting yet worthy of awareness so that we dont manipulate others in a bad way to feel things or do things they normally would not.