Depends what I'm doing. When I'm feeling a bit too tired, I generally like listening to music to wake me up and get me through what I'm trying to do, usually l

Depends what I'm doing. When I'm feeling a bit too tired, I generally like listening to music to wake me up and get me through what I'm trying to do, usually lets me focus a little harder. When I'm energetic and at full focus, I will sing along to the music I'm listening to, obliterating all my productivity. Either way, also depends on the person. Have plenty of friends who can't deal with any audible distractions, and have plenty who can't work without it.