What do you do when you feel grateful?

This is beyond writing a post here or thanking the universe for something in your life. Do you do something to show the universe how grateful you are for the amazing things you have or are happening to you? I’m asking to get more ideas of things to do (volunteering, meditating, etc.)

I’m holding my baby in my arms and watching her sleep. She’s been asleep on my chest for an hour. I feel no rush to move her, and I’m enjoying every second. I’m extremely grateful for my family, my house, and everything that has happened so I can enjoy these early days of motherhood without any worries. I feel extremely blessed and happy, and I want other people to feel as happy as I’m feeling now. I have contacted a milk bank to become a breast milk donor - this is one of the ways I’ve thought of to not only show my gratitude to the universe but also to spread the love and happiness.