Forming friendships with colleagues does not necessarily has to be a win-lose situation, even if their career performance is measured against yours. When she worked as a sales development representative in one company here, Ms Madeline Tan, 25, said that it was challenging for her to befriend any of her colleagues. Working in that office felt like a zero-sum game. If a colleague managed to book a potential client for a product demonstration meeting, her managers would announce the achievement