[one Lord one faith one baptism]

Did he make the sign of the cross when praying, the Muslims I am sure are offended by the cross and the victory over sin accomplished there.

[Cicero]

It doesn’t say, but I doubt it. As you say, that would have offended his hosts. It does say “His head bowed, eyes closed and hands clasped in front of him.”

[Mrs. Don-o]

He had his hand on his pectoral cross.
Caption: Pope Francis in Istanbul. Source: Telegraph, UK