1.
N-, -han
to do anything with a quick, lively action; to be adroit.
That which he is quick [about] is when there is now food to be eaten!
Eating is the only thing that he is quick about!/ The only thing he does quickly is eat!
If you are given money by him, right away be quick [and] get it [for yourself], who knows, [he may] change his mind.
If he gives you money, be quick to get it right away, because who knows, he may change his mind.