Flowing is being the action. And being it requires our full attention. To give something our full attention requires an uninterrupted focus. It is a skill modern life has eroded with its endless distractions and celebration of busyness and productivity. We can, however, nurture our focus of attention. We can meditate. Or simply practice using our full attention in the moment we are in.
Out of full awareness, actions occur to us to take, they pop into our minds 'out of the blue'. We only need to be patient.
When we take the actions that pop into our minds out of the blue, and use our full attention, our full awareness, we are being and flowing.