During 2010, I owned three different cell phones. I have never been one to chase the latest greatest toys, but clearly 2010 was a terrific year for the mobile communications industry. We welcomed the first 4G phone among other major technological breakthroughs. Cell phones today are targeted toward a broad range of diverse populations, ranging from the aged to the poor. More recently, we have begun also targeting babies for cell phone use, even though they are far too young to form actual words. While too young to form verbal language, they are old enough to mimic cell phone behavior. 
$10
1) The majority of cell phone offenders were female (bummer);
2) lack of awareness of their speaking volume and conversational tone;
2) lack of awareness of their speaking volume and conversational tone;
3) lack of awareness of the inappropriate nature of their conversations (topics were too personal and unsuitable for public consumption);
4) lack of awareness (or concern) for how their conversations impacted those around them;
5) inability or lack of desire to engage the other individual(s) with whom they were traveling;
I do not believe these individuals behaved poorly while using their cell phone for the sake of annoying others, instead I believe they behaved badly because they were simply unaware of their cell phone behavior. The next time you use your cell phone in public or at home, I ask that you use it consciously. Be present in your physical surroundings; be aware of how your cell phone use may be impacted those around you. Be mindful that children/youth may be watching you and will mimic your behavior, it's how children learn behavior.
While we may never challenge a person we don't know in public who may be annoying us as a result of their cell phone conversations, we CAN monitor and change our own behavior.
