Therefore,

as soon as you have checked him return the lead
hand to its stand-by position.
Your reverse hand is used also to check range but primarily
it is held back for attack purposes should the dissuasion fail
and you find an attack you last line of defence. Once the
fence is up, you can try and talk the attacker down by telling
him that you do not want trouble. This may hurt the old
pride a little, but it is better than having to become physical.
Depending upon your make-up you can be submissive with
your speak or if you think the situation demands it and you
can carry it off, firm to aggressive.
It is important, as I stated earlier to keep a check on the
opponent's body language. If" he is aggressive and moving
forward then he is a greater threat than if he is aggressive
and standing back. The difference being that the attacker
that is moving forward and touching the fence is usually
preparing to attack.