The title really says it all, but for you sticklers...
How to eat chips with out getting hands dirty?
Things I have tried:
A napkin; very awkward
Not eating chips; not a solution
Eating with my pinky and ring finger only; even more awkward
Things you may use:
Roll the sides of the bag down or put the chips on a platter so that you do not have to touch the greasy bag.
Use a tissue to touch chips.
If you are eating with several people put your chips in a cup and bring it to you mouth and eat that way.
Use a fork. Take the forked end and carefully stick a chip between the forks and then eat it like that.
Assuming you don't mind getting your thumb and forefinger dirty, you could do push the bottom of the chip bag up so that you can reach the chips without submerging your hand in the bag, which would get your knuckles all dirty. For detailed instructions, I like this video by Crazy Russian Hacker
However, if you don't want to get your hands dirty at all, there is only one way I've found. It doesn't work with all kinds of chips, just the ones that stick to your tongue or that you can grasp with your tongue:
The chip should now be in your mouth and you can eat properly.
Note: when there are few chips left in your bowl, it starts to get awkward because you have to bury your face in the bowl and stick your tongue out really far. But hey, if we want clean hands...