We're conscious beings. Why? I don't believe free will is possible, so what sort of will are you talking about and how does it work? — Unseen
The ability to self-move I think. Just as our own behaviour is determined by our values, thoughts and feelings, so is the behaviour of fundamental particles and fields is attributable to some kind of value and feeling.
I think this is a solution to the problem of under or over determination in macro-behaviour of creatures which everyone agrees have minds, such as humans. The problem is about deciding what determines behaviour. Do we tell a physical story about photons, retinas, neurons and synapses, adrenaline and motor responses? Or do we tell a story about seeing a lion, feeling fear and running away? Presumably both of these apply in some sense, but how are they compatible and what is their relationship? A panpsychist answer is that the physical is reducible to the psychological. All the particles and forces involved in the 'physical' story are doing what they are doing because of how they feel, and if they felt nothing they would not exist, because to exist is to behave in a persistent way for a while, and no such behaviour could happen without conscious will.
At such a fundamental level, there is no 'how' in terms of mechanism. Mechanism is a higher-level development in which conscious entities all doing their own thing interact in regular predictable ways, and these can then be manipulated. Consider that you could make a light switch out of thirsty human beings. Get a giant tray, pivoted in the centre. Put half a dozen people on the tray. Have electrical contacts under each end. Then put a bottle of water at one end of the tray. The thirsty humans move toward the water. The end they move to goes down and makes a contact. Then put the bottle of water at the other end, the humans move and the contact is broken. This switch would not work if the humans did not feel thirst and did not will to survive. And from an alien perspective, this might look like the mechanical movement of insentient particles obeying some kind of impersonal force. The panpsychist point I'm suggesting is that everything is like the human light-switch, only we don't realise it. When we look at the mechanical behaviour of relatively simple matter, we are like the aliens who don't realise that humans are conscious, and name regular behaviours in terms of impersonal laws. The panpsychist idea is that there are, in fact, no impersonal forces at all. All behaviour is ultimately, and most accurately, attributable to will.
I haven't argued for panpsychism here, I've just explicated (one version of) it a bit to try to answer your question.
EDIT: typos