Remember the best holiday you ever had?
Most likely this was a holiday when everyone was especially nice to you.
You can have more holidays like this. And it's easy.
All you have to do is be nice to others.
Then they'll respond by being nice to you.
For example, if you smile at people, they'll smile at you. If you praise others, they'll praise you. And so on.
Here's a list of ideas: See: 25 Ways to Be Kind.
And there's a bonus: By being kind to others, you may make this holiday the best one ever for someone else.
That will leave legacy of lifelong gratitude.
Wish you the best,