And even if they are right handed, they hold their fork in their left hand, ALWAYS. They use their fork more as a dust pan and the knife is used as a scooper to pile things onto the shovel. They do it ever so delicately, with little quaint movements like a little squirrel. And when they go to lift food into their mouth with the fork, the fork is always upside down in their mouth.
I even have seen people eat fries (chips) with their fork and knife. They use the knife to press the fry (chip) onto the fork and then bring the fork to the mouth.
Or sometimes as Americans, we just give up on utensils all together. We just use our hands! I must say that it can be very effective....like we are really going to eat a burger and fries with a fork and knife!
A little food for thought....