Mike answers:
Enjoying it.

We have a winner!!! The Only correct answer possible to this question. Many
times in the situation described, folks allow fishing to become angst-ridden.
Within the confines of the original question, stealth goes a lot farther than
people assume. Just because the fish are "used" to people fishing, doesn't mean
they are happy about it, or feed normally when people are observed. Try hiding
very quietly and see if they don't start feeding.....then trot out the other
skills mentioned.
Tom
p.s. this hiding period might take quite a while for the fish to relax, so
refer to Daytripper's answer, as well.