He knows exactly what to do - Ben heads in Allison's direction, so he meets her in the middle. Allison hugs him, and he hugs her right back, squeezing a little. They can hug! It's a real hug, too, not like when his spirit was being hugged as it faded.

Ben has exactly zero problem with it, not ready to let Allison go yet, either.

"What are you doing here?" he asks, still holding on.