How do you celebrate team successes, big or small?

Francisco,
I'm a proponent of celebrating big and small wins for two reasons. One, it helps you reinforce the behavior you want to be repeated, and two; it allows teammates and stakeholders to see that a person is valued for their efforts.

With that said, I publish a weekly message to my team and some leadership. It' called Friday at 4. I highlight a few topics and acknowledge teammates. I also like to nominate people for awards.

In my teams approach to celebration, we organize three key celebration category.
(1) Firstly, we combine our monthly achievement reviews with birthday celebrations for team members born in that month, creating a dual-purpose gathering that recognizes both professional accomplishments and personal milestones.
(2) Secondly, for project phase deliverable acceptance, we opt for a more casual celebration, typically organizing a lunch or dinner at a local restaurant. This relaxed setting provides an excellent opportunity for team members to unwind, bond over a meal, and discuss their experiences and challenges in a less formal environment.
(3) And lastly, upon project completion, we host a more significant celebration that includes main stakeholders, often held at the project site or a suitable local venue. This event features a spread of food and non-alcoholic beverages, allowing for meaningful interactions between team members and key project participants.