In addition, there’s a “long version” of the sign of the cross, often used in Mexico (and probably other Latin American countries, as well) called persignarse - in which the person crosses himself/herself 4 times (forehead, face, torso, full body), and finishes by kissing the cross formed by his/her thumb and forefinger. During the first 3 crosses (and at the final kissing of the cross), the thumb and forefinger create a cross, and the other three fingers point upward toward heaven. For each cross, there is a short part of a prayer, though I can’t remember the whole thing. I have only seen this done by Spanish-speaking people, though.
I’m wondering if this is simply a Spanish folk tradition or if it is an older church tradition that fell out of favor in other parts of the world.