Tap the 'Search' tab in the bottom tab bar (indicated by a magnifying glass icon) then tap into the Search text field at the top of the screen.

Select the slider menu for the type of item you would like to search for: 'People' of 'Products'

As you type your search terms, results will dynamically appear.

Hit 'Search' on the keyboard, or simply scroll the content of the page to hide the keyboard and access all of the results.