A.T. Robertson Commentary Luke 22:56

"And a certain maid seeing him as he sat in the light [of the fire], and looking stedfastly upon him, said, This man also was with him." — Luke 22:56 (ASV)

In the light (προς το φως). Facing (προς) the light, for the fire gave light as well as heat. Mr 14:65 has "warming himself in the light," John (John 18:18,25) "warming himself."

Looking steadfastly (ατενισασα). Favourite word in Luke (4:20, etc.) for gazing steadily at one.

This man also (κα ουτος). As if pointing to Peter and talking about him. The other Gospels (Matthew 26:69; John 18:25) make a direct address to Peter. Both could be true, as she turned to Peter.