Hi. Caring about the faith is a good thing. You include ‘praying vocally’, yet I still have to echo TheLittleLady’s answer, that being…no, within reason. I believe one ought to refrain.
Although, as veritatisstella said, we respond with “Amen”, which is a prayer in acknowledgement / agreement form, an assertion and ascent of faith, the answer remains the same, because ‘praying’ - especially the “Amen” given during the taking of Blood, which is an obligatory part of our participation in the Mass, even if said quietly or whispered - is not ‘speaking’, in the usual sense of the word.
Vocal prayer is more ‘communication’, ‘offering’, ‘supplication’, or ‘communion’ even, than it is ‘speaking’, as such; at Mass, including the responses, all is worship.