When designing a learning experience you need to think of ways to capture the learners attention and bring the subject to life. Finding new ways to do this requires you to be creative.
A common misconception of creativity is to be original, to me it is bringing the right idea at the right time and blending elements together for a unique experience. It is very rare that you can create a new idea, but you can improve upon an existing one.
People are not born creative, it is a mindset of staying open, enthusiastic and challenge the status quo. If you personally experience a variety of things you can then bring different things to the L&D team and the experiences you facilitate.