Good question.

I was eating bread one hour ago and numbering all the signs/evidences.

From the things he did.
From the things he said.
From how TPTB interacted with him/around him.
How he keeps the law and the commandments.
From how he lives.
From how he behaves.
From how he interacts with society/this world.
From his astrological chart.
From his genetics, geneology.
From his appearance.