There’s always that one colleague. The one that you’ve never spoken to. The one you’ve silently made coffee next to when you’ve had the misfortune to end up in the kitchen at the same time.
Say hi. Ask how their weekend was. Or where they got their shoes from. Anything. Chances are, it’ll be super awkward, but you never know when someone’s hankering after a conversation (and just at a loss at how to start it).