Paraphrasing is simply taking the information that you read and putting it in your own words. If you use information from a source and word it exactly the same or nearly the same as the author of that work, you have committed plagerism.
[1] Ann Marie Nicolosi, “"the Most Beautiful Suffragette: Inez Milholland and the Political Currency of Beauty,” The Journal of the Gilded Age and Progressive Era 6, 3 (2007): 286–309. http://www.jstor.org/stable/25144485.
In Chicago, in-text citations may be added at the bottom of the page in footnotes, or at the end of the paper in endnotes. To use footnote style citations, the concept is the same, only select "insert footnote" instead of "endnote." You may also quickly add a footnote by placing your cursor where you want the footnote inserted in your paper and holding down Ctrl+Alt+F.