(And no, you are not going to be speaking fluent anything the way average person uses these. But you might be able to order food and not sound stupid.) One day, the home phone ring and on the other end was somebody from Rosetta Stone who informed me, "We see you haven't been using [whatever language I was working on]. Is there a problem?" That elicited another language; not in the one I was trying to learn, one in which journalists are generally fluent. "You are tracking me? You've got to be kidding?" This conversation did not end well and I gave them my opinions of their parentage. And this falls exactly into Sweezey's advice of not surprising people. Sweezey's tips were aimed at prevented giving prospects the feeling of "he sees you when you're sleeping. He knows when you're awake. [My words; not his]" That including the following: "The person you're talking to doesn't need to know you have all that information about them. They didn't put the data out there for you -- they did it for them." He said a tweet does not necessarily require a follow up call and it's probably not good to reach out on Facebook. Overall, Sweezey advised "No one likes a stalker. Don't be a stalker."