How do you load a front loading bobbin?

I'm assuming you're talking about winding a bobbin on a sewing machine? If so, there is a post similar to the one for thread (near it) that you put the empty bobbin on. Then you put your spool of thread where it goes on the machine. You wind your thread from the spool of thread to the bobbin (there's usually a little chart on your machine, but if not, the thread goes through a hook or two and then you wind it about 4 times around the bobbin (clockwise). In newer machines you then push the bobbin toward a holder type thing that is near it. This disengages the needle from going up and down and lets the machine wind the thread as you push the pedal.

On older machines, you have to turn the handle of the machine toward you and it disengages the needle, allowing the bobbin to be filled when you press the pedal.

Hope this helps! You could probably google your sewing machine name and how to thread a bobbin and maybe get a diagram.