A fork is a tool with a lot of possible uses:
*opening bottles of beer
Step 1: Eating
Most people are familiar with using a fork to eat meat.
For those who aren't:
Firstly you need some meat (doesn't really matter what it is)
Now place the food in front of you on a hard surface (table)
Push the fork into the piece of meat, this needs a bit of
muscle power, but shouldn't be a problem for most people.
When the fork is in the meat, you just bring the meat to your
mouth and the eating can begin!
There is almost nothing that can't be eaten using a fork, so giving a detailed instruction for everything would take me a bit to far.