Notice how Jacob says "seemed to be" here—while he can't explain it, he's still not willing to admit yet that Emma is generating fire with her bare hands.

Almost anything Jacob has seen thus far could be explained away somehow, but since David Blaine isn't anywhere nearby, levitating dinnerware can only be the result of something supernatural.

Jacob's bravery has its limits. Going inside Miss Peregrine's dilapidated house is scary enough, but heading into the dark, creepy basement takes a new level of courage Jacob has to tap into. We feel you, dude.

If we were in his shoes, we might head in the other direction, but when Jacob spots a small group of creepy kids, one of whom can generate fire with her hands, he actually follows them.

Jacob sticks out when he travels back in time because his clothes look so different than anything people wear in 1940.

Emma wants to see Jacob's eyes because wights—some of the bad guys—don't have pupils. It seems that Emma knows that wights can alter their eyes, too, which makes it a little less surprising to learn that Dr. Golan hid his identity with contact lenses to make his eyes appear human.

Seems like this feeling of being alone runs in the family, and it's reached a critical mass in Jacob as he thinks about how his grandfather was alone, and his father felt alone, and he feels alone. That would be hard to deal with even if he wasn't in the middle of a creepy falling-apart house.

Jacob sometimes thinks his isolation is driving him crazy enough to see things. At first, that's a more rational explanation than the fact that some kids might be invisible or able to shoot fire from their hands.