Yes, I learned to do it that way.
We say, “Por la señal de la santa cruz” (By the sign of the holy cross)…making a cross over the face
“de nuestros enemigos”,.(from our enemies).making a cross over the chest…and shoulders
“libranos Señor, Dios Nuestro” (free us Lord, Our God)
En el nombre del Padre, el Hijo, y el Espiritu Santo, Amen" (In the name of the Father, the Son, the Holy Spirit, Amen). …Regular sign of the cross.
We will take a hand and make a small cross using a thumb and index finger and kiss it at the end.
It seems an acceptable way to do this, and I’ve even seen it taught in books as the correct way to make the sign of the cross here. They even teach it to children, in books.
It’s how it’s done here.