Wow. CEO here. I'd never make things up in an interview. I think its a very bad idea. I would take it from real life examples from your work experience - its good if you can reference more than one role but it really depends on whether they are strong enough examples.
For me an interview is not a box ticking exercise. I want to find out whether the candidate's work experience is relevant, how they approach issues, their values, whether I think they are a good fit for the team. I will follow up with further questions if I'm not clear about an example given and if someone was bullshitting I think it would come across as them not being able to adequately explain the experience they are describing. I'd not want to work with or employ a liar.
So for instance in effective decision-making I would be looking for an example that might include working as a part of a team, collecting evidence and different viewpoints, ensuring you had included relevant expertise, evaluating the risks etc. It doesn't need to be heroic in terms of knowing the right answer on your own straightaway, I like answers where people show that they had to change their mind or assumptions because of the evidence before making a final decision. I like team players who value other peoples' skills and knowledge.
For communicating and influencing I might be looking for examples of influencing peers or higher up people, or external audiences. I might look for things like showing that you understand the goals and objectives of the people you are trying to influence, how you evidenced your argument. A good example might include anticipating further questions or issues the person you're trying to persuade might have, understanding the strengths and weaknesses of your argument, demonstrating that you had considered and evaluated other options, and being able to communicate effectively in a number of different ways.
Delivering at pace - try to find an example where you were working at pace and under pressure, how did you manage and plan the work, how did you ensure you didn't drop the ball or make mistakes, how did you ensure others were ready to make their contribution/input. Again, I like examples where plans had to be changed to respond to a new issue or opportunity.
And going back to the honesty point. I'm not looking for perfect answers - I'm looking for thoughtful and considered answers that demonstrate how you think and approach things. People who demonstrate self knowledge and an ability to adapt and learn would be a good fit for a job with my organisation.