Engineers aren't known for being the most socially outgoing people. When one thinks of an engineer, the stereotype is of a person that stumbles over their words, avoids eye contact, fidgets, and makes awkward comments. In fact, a fairly common joke is: When talking to an engineer, how can you tell an extroverted one from an introverted one? An extroverted engineer will look at your shoes rather than their own when talking to you.
Although this isn't the case with all engineers, there is some truth behind it. I'm in the mechanical engineering program and I have to deal with a lot of students that are just plain odd. The College of Science and Engineering is starting a program called the Gemini Project in order to combat this problem. The Gemini Project "teaches social and professional networking skills to students who may otherwise struggle in those areas and specifically targets engineering students" (MN Daily, 2011-09-26). After doing a little digging, I found out that there used to be a class that taught interpersonal skills but it isn't offered anymore. I think that a lot of engineering students would benefit from a class like this. The only problem is that if they are not comfortable talking to people they may not be willing to take a class where they know they'll have to interact with others.
Luckily, we aren't all like that. I'm living proof of an engineer that's eager to start random conversations and meet new people.