Assuming you are right handed...
Lay your model one on a table in front of you, with the logo side up. The tip should be pointing away from you. As you pick the knife up, the web between your thumb and forefinger goes under the hilt on the edged side of the blade, and your forefinger by itself goes over the hilt on the spine side of the blade. Your other 3 fingers grip the handle. This grip allows for a strong push and pull. It is believed that the hardest blow to defend against is delivered from low at an angle. It sounds unusual, but will grow on you quickly.