Wireless Technology Planning
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Public speaking was required for engineering majors at my undergraduate institution, although I think this is not typical. I would recommend taking a public speaking course even if it's not required, as I found this to be a very beneficial course. It improved my speaking ability immensely, and helped with anxiety I had with speaking in front of others.
I also recommend taking a few humanities or social science classes in an area you are interested in. Typically you will be required to take a few of these classes anyway. In addition to learning about a subject you are interested in, use these classes to develop your reading and writing abilities. An important component of these classes is learning to write effectively and persuasively, and the professor and TA should work with you to help develop your writing ability as you write your papers.