I spent all the years from early 20’s (after college) until my late 30’s living in a mainly Hispanic community in New Mexico. I still make the sign of the cross (anytime, even in private prayer) the way I learned among those Hispanics. (Making a cross of the thumb across the index finger, signing myself, kissing that cross symbol of thumb over finger, then folding my hands palm to palm.) Can’t break the habit, and don’t need to! I look odd to strangers who visit our Parish doing this, but when I go to our other Parish (about 15 miles from my home, same Priest) and attend the Spanish Mass, I fit right in, since most of them do so as well. Also, at Spanish Mass, it’s not uncommon for someone to go through the Communion line and kneel to receive the Host. Most younger ones don’t, but the older people, who grew up in Mexico or Central America often do so. (They also line all the children up, AFTER the Mass ends, to go forward for an individual blessing, also a custom in many Hispanic cultures. Our Priest would rather not do this (he has no Hispanic background), but they’ve done it for about 30 years here, and I don’t think he’s going to stop the 300 families (& often more) from sending about 15 - 20 small children, usually 4 to 7 years of age who are too young to receive Communion, up in a small procession after the Mass ends for their “Sunday blessing”. Different cultures have different customs, and all are acceptable to the Church, so long as they are not disruptive or disrespectful. I have seen a few people go to Communion on the EWTN Mass receive the Host on either one or both knees. Seems to be o.k. with the Priest friars! God accepts us all just where we are & with our cultural baggage!
I also made my First Communion in Oklahoma with quite a few Hispanic and Indian children in the Catholic School, but back then, in 1949 - 50) we all knelt at the Communion rail anyway, so it wasn’t an issue then. But we were taught to cross ourselves before rising from the rail and returning in order to our pews - taught by the Sisters, and it was acceptable to our Bishop. By the way, the Bishop was my Godfather (!!) and his housekeeper was my second Godparent for my Baptism, as I was the only Catholic in my family when we were in Oklahoma, except for a stepbrother and stepsister, who were too young to do so! How wonderful he was to me!!