I'm not quite sure why you are asking. Just a few minutes of riding around will answer all your questions.
Some click. Some don't. Some do it either way depending on how you set it.
For the front, all the way up is the big ring and all the way down is the small ring. If you have a middle ring, I'll bet you can guess where the lever is for that.
Pedaling gets easier as the front (usually left) lever is pushed down and as the rear (usually right) lever is pulled up.