Opening notes from our friend in the UK:
Here is my text...... "This knife can be opened and
closed manually, and it can be opened automatically. To open the knife
with the hidden button, do this. Close the knife and lay it in your
right hand. Starting at the pivot, slide your thumb down the handle.
Just past the thumb-stud there is a depression this is not the button.
Slide your thumb a little further, just past the depression this is
the button. Making sure that your fingers aren’t in the path of the
blade, press with your thumb. The knife should then open." Alternatively,
you could always rename the knife the "G-spot", then men would know
to expect some initial difficulty finding the button ;) Regards Steve