What are the stuff anyone suppose notice as they do Mindfulness? So they know is it working or not. Even natural, it either working or not working. So that even when they don't have any bad or uncomfortable things or situation to face(well what each person would consider in their mind) as giving a try. It is working, not working or natural. Even in daily life, it don't over whelm or feel something. When they do stuff they have done so many many times like brush teeth make a meal, watch TV, etc..... Some might consider it for no reason, or there is a reason, but they don't know why the feeling happening.
Also is the person doing something wrong or how they go about it wrong. Of course it not just enjoyment or fun stuff like playing a video game, watching TV, going window shopping, hanging out with friend(s), etc.... One can't kind of not care or be like even listening to music.