Awareness is about being conscious of what is happening right now.
Noticing the immediate moment.
This is harder to accomplish than you may imagine.

Feeling your body, being aware of your thoughts, emotions, what is taking place around you, sounds, sights, smells, sensations...

Most people 'space out' for much of their lives.
They are aided in this by TV, portable hi-fi devices, cellular phones, video games, computers, caffeine, alcohol and drugs.
It is no easy task to be truly present.