The study of this is psychology and you basically just go off of your experience. But, there is not any actual way to read the mind yet discovered by our technology.
Answer:
The Spanish colonization of the Americas began under the Crown of Castile and spearheaded by the Spanish conquistadors. The Americas were invaded and incorporated into the Spanish Empire, with the exception of Brazil, British America, and some small regions in South America and the Caribbean. The crown created civil and religious structures to administer this vast territory. The main motivations for colonial expansion were profit through resource extraction[1] and the spread of Catholicism through indigenous conversions.
The answer is d hope this helps
Gerald Ford both times it happened in California