mane mane - within the mind; jape - chants; mukhe - in the mouth; nā kare ākhyāna - does not express; ei - this; ihāra - his; manaḥ-kathā - intention; kari anumāna - I guess.

“This boy chants the mantra within his mind but does not say it aloud. That is his intention, as far as I can guess.”