In Mark 16, what five signs did Jesus say would identify his followers?

They would cast out devils, speak in tongues, handle serpents, drink poisons without harm, and heal sick people.

These signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues; They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover. Mark 16:17-18