Things that I’ve noticed that make my team happy at work are:
Ordering stationery and equipment promptly. Also ordering a spare as there’s always someone else that wants one and it’s nice to offer it around or “take orders” before ordering. I always ask “would you like?” rather than “do you need?”
Making sure we have the right tea and coffee. My manager has one type of tea, but the secretaries prefer another. Coffee was also important to some members of staff so we get the one that they like. Some staff prefer herbal teas so I always make sure we have a nice selection and I make a point of getting new ones to try. We have tea making time 4 times a day (9,10,12 and 3), and support staff take it in turns to make.
Different team members bring in biscuits and cake from time to time and send an email around.
For birthdays, we all sign a card and put money in to the combined value of £10. It isn’t much, its just a gesture, but a nice one.
We have a WhatsApp group and meet up outside of work for different things. It’s very friendly and pressure-free.
Most importantly, everyone is liked and respected. We have opportunities through the day to chat about our evenings and weekends, kids and dogs, and it’s a nice team.