Since my concentration during the microcosmic orbit meditation is not really stable I spent my evening session practicing this. I sat down cross-legged and focused on the breath, using abdominal breathing. So my focus is on the breath but my general awareness stays aware of thoughts as they arise as well as sensory input. I kept this I up for an hour and it felt really good, I think my concentration needed some maintenance. Will do this a couple more times at least.