It will feel like an electrical charge, he said.
It won't last long, but will be unmistakable. Like a sudden jolt, or momentary weakening of the legs. Perhaps your spine may tingle.
But that's how you will know.
That transference of energy only occurs when you and the other person connect like this.
They call it a 'hug'.
You may then instigate a mutually beneficial personal partnership and allow it run it's course.