Leering is a term used to describe when someone is looking at or gazing at something in a strange way. This could be an unpleasant or malicious way.
from Hamlet Act III,scene 1 Whether 'tis nobler in the mind to suffer The slings and arrows of outrageous misfortune, Or to take arms against a sea of troubles, And by opposing end them? Seriously,this could apply to war in Iraq versus ignoring,say,Saddam's dictatorship. To fight or walk away basically.
The person is in a state of being more aware, knowledgeable or conscious of something than they were before. Something is on a person's mind more eg. terrorism, epidemics, other world problems ...these are frequently brought to our awareness; increasing our sense of caution and responsibility.
Self amplifying, cycle of acceptance and acknowledgment in you. It's the chain reaction that will ultimately define our ability to overcome imagined differences and look at life in the grand scheme of things
In Amplifier if feedback is occures when the feedback signals is in phase with the input signal the feedback is known as Positive feedback. And the feedback is occures when the feedback signals is out of phase with the input signal the feedback is known as negative feedback.