OMG, I was just talking to my girl about this very thing the other day.

#1. If your phone is so crappy that it doesn't pick up your voice from the proper position up to your ear......buy a new one.
#2. You look totally retarded acting like your phone is a walkie talkie or something.
#3. Doesn't the back and forth crap waste both time and energy?
#4. What is so wrong with putting the phone up to your ear like it was designed to? Is that the new "in" thing to not squash an ear lobe or something?????

I totally hate when people talk on their phone like that. It makes absolutely no sense at all. Talk on it like it was meant to, get a bluetooth, or use the speaker/hands free function. The end.