I really don't know how to live in the moment. If I happen to be in a good mood, it's easy. I'm having a hard time trying to manage my moods--it's largly out of my control.
Some of the small things that help are simple--I love looking up into the night sky...it never fails to wow me. Looking at the rest of nature is good...it's peaceful for me to listen to the birds sing and look at a stream and listen to the water move...
I don't know. Maybe you can try to focus on the things in life that make you smile on the inside. When I look up into the space beyond, I start to think about wonderful things that don't upset me. It's neat. I wish I was an astronomer, sometimes...