First of all, there’s Latino’s everywhere in California. You could get around the whole state without knowing a word of English. You could ask for the time in Spanish. You could order your food in Spanish. You could ask for directions in Spanish.
And guess what, most of them know Spanish and English! If you aren’t sure how to say a word or phrase, simply ask them! They’ll be more than happy to tell you. I’ve noticed that if I speak Spanish, they know it’s not my native language and are very happy to hear that I’m trying to speak it. They totally respect that.
So take advantage! A simple Google search will reveal many sites to easily learn many phrases right off the bat!