Did you know you can restrict searches in Google Image Search to show only results with faces? This can be a huge help when you are searching online for pictures of Great Aunt Tilly. Here's how:
From within Google Image Search, click on "Advanced Image Search", located next to the search field:
On the advanced search panel, enter your search terms in the top fields, then select the radio button next to "faces" to limit your results:
As a shortcut, you can add &imgtype=face after your query in the address bar.