The trick is to be grateful when your mood is high and graceful when it is low.

I have a lot to be grateful for.

Focus on the positives and be grateful.

Generally, I find a lot to be grateful for.

Isn't it amazing how it's always the very people who insist other people be grateful for charity that get the most insulted when they're offered charity themselves? I've often noticed it.

Contemplate the good things in your life and be grateful for them.