Please choose the correct solution to the question: How can you tell if you are in a room with a one way or 2 way mirror?

Solution1: Place your fingernail against the ceiling, if there is a gap (small distance) between the nail and it's reflection, it's a regular mirror if it touches the mirror directly without even a small gap you are in a room with a 1 way mirror, leave now.

Solution2: Place your fingernail against the mirror, if there is a gap (small distance) between the nail and it's reflection, it's a regular mirror if it touches the mirror directly without even a small gap you are in a room with a 1 way mirror, leave now.

Answer format: solution1/solution2
Answer: solution2