Cultural differences

[indigo_rose99]

In my time in France I have several times walked by people doing the alternating cheek kisses.  Sometimes it was at work, and just now two people standing in the airplane aisle next to me did it.  What is surprising to me is not that they did it, it is my own reaction:  I look away in... Something.  Embarrassment.  Dismay.  My gut reacts to it in the same way I react to a couple exporing each other's tonsils in public.  I have no idea why I react this way.  Intellectually, I know this is a greeting between people who are not necessarily intimate.  But still, this is my instinct.

Is it just me?  Is this a Texan thing?  A US thing? An N.American thing?