his palm tells

Maybe he plays a lot of golf. Or baseball? Or kendo? Also his index finder is quite long which means he can be a good short term trader according to an SCMP article from a few days ago.

chestnuts prepared to be useful

呢個日文句有啲奇怪。同我嘅中文一樣。

my new favorite

I don't know if they sell this in HK though.

selling ice cream

Didn't know licence was needed to become an ice cream hawker.