In my previous team, we spent every morning listing three things we were grateful for. We would go around in a circle (which turned virtual as the Pandemic hit) listing one thing each, patiently waiting until someone had something to say.
Whether it was having a nice coffee break, relaxing in the evening to a nice meal, catching up with a long-lost friend, spending time with the kids or simply the sun coming out in the morning, we started verbalising these positive moments far more than we ever would have done otherwise.