Answer:
When Miguel has a stressful day at work he is obviously under much stress and has not been able smile. So just looking at the mirror and smiling reminds him of how good it feels to smile. then makes him feel good
Explanation:
I put the explanation in the answer
The Answer Would Be Pulling A Rope In A Tug-Of-War.
Yes as long as the wax is falling in to something and it's out of reach, there is no toxins in wax.