Being a beggar and a homeless person is an interesting experience. Of course, Snow doesn't find the people in their lowest state as something fun and to be happy about. It is just that there is something he learned when he is in a similar situation.
He sees things from an entirely different viewpoint, especially when he decides to never use his skill unless necessary while in Qiping City. One could never know if someone can detect the use of his system or anything abnormal in a certain range or location.
Of course, Flake still has free rein in changing between his bird form or ten-year-old boy appearance. At the same time, he believes and trusts Flake to use the cheat skill at the right time and situation.