You ask to shake his hand. He would offer it and you would feel his hand, because he is a resurrected being. If he was an angel, not yet resurrected, he would not offer his hand and would tell you why, that he was not yet resurrected. If he was a satanic angel, he would offer his hand, and you would not feel it. Satanic angels want to appear real, but can never be resurrected.
