The Word "Like"

Just a thought here. I wanted to share about how I have noticed on the west coast, particular in California, that the word "like" is used entirely too much. I choose California because it is the central point of where all Hollywood television shows and movies take place and Hollywood has some of an influence on Californians. Coming from the east coast, Florida, I have heard the word "like" used, but not as much on the west coast. For example, I walk into get a coffee at Starbucks and overhear a female, about in her late twenties, say, "Oh, my gosh, that is like not true." "Did he really say that?" "I'm like so upset." "I'm going to call him like right now." These sentences were said with "like" used in every sentence. Another example, my sister-in-law, from San Diego, thinks she is on some kind of reality show every time I talk to her with her "like" words she uses about twenty times. I believe this does have a theme to it as far people from California using "like" more often and is described as a region. But, what defines the boundaries for this region?