Literacy Clues Buried in Some US Naturalization Documents?

I've had copies of these documents for years, but rediscovered them since they went "live" on FamilySearch.

This is part of the naturalization petition for Peter (formerly Panagiotis) Verikios.

Petition 125826, Peter Verikios, petition dated 2 July 1934, District Court of Chicago, Illinois Northern District [Naturalization] Petitions; digital image, FamilySearch.

The document indicates that Panagiotis was able to read the document rather than have it read to him. Earlier I had been focused on his "henceforth" name of Peter and did not notice that he indicated he had read the document.

Never hurts to get buried in that fine print.