IPhoto 11 retouch tool: grab not working

Question

Using iPhoto's retouch tool, I want to grab some pixels from one area and put them into another.  Apple support instructions say:
...you can “grab” pixels from another part of the photo and apply them to the blemish.                              Press the Option key while you click an area that has the texture you want, then do step 5.
Yet when I try to do this, I don't get a the perfect replacement of Option-keyed pixels over the pixels-I-wish-to-obliterate.  I still get the usual Retouch tool smeary blend, which is not how to get rid of stray blonde hairs on a black background.
What am I doing wrong?  For those who use Photoshop, I'm looking for iPhoto's eyedropper.
The problem may be in timing the pressing of the Option key while clicking.  I use a Trackpad, if that makes a difference.

Answer 1

Nope, not confused.  I'm asking about an iPhoto feature that Apple's help says exists (quoted in my original message).
I'm asking for help/clarification on precisely how iPhoto's retouch grab feature operates, since using the Option + Click isn't working for me.  I used the Photoshop analogy for further clarity; apologies if it only obfuscated.