We have two Masses on Sunday...one in English and one in Spanish. The attendance is about the same.
On special days...Our patron Saint's Day (St Timothy), or Holy Days of Obligation where we can have a bi-lingual Mass, Father uses English for the proper of the Mass, the Lectors alternate the 1st and 2nd Readings and the Intercessions. The Homily is read fully in both languages. The responses, however, are in Latin.
Here's my point though: a few practicing Catholics (and I would guess other denomination)...may go on "autopilot" as far as standing, sitting or kneeling. Often the faithful will watch the Altar Servers for the proper pose.
I found, especially at my first Pilgrim's Mass at Roncesvalles that the majority of the pilgrims were not Catholic and, consequently, stood the entire time...not a bad thing, though not expected.
The Mass, itself, especially in the Latin Church...is basically the same...From the Blessing at the beginning to the Sending forth at the conclusion. When the Mass is said in Spanish, key words or phrases can be very different in inflection and order…thus harder to follow.
You’ve been given the perfect link as to what is said in Spanish…by the time you finish your Camino…you’ll be a veteran in many new things.
Saludos,
Arn