YSK that putting your napkin/trasg inside your cup at the end of a meal at a restaurant is not helpful or polite to the staff.
from /r/YouShouldKnow
YSK认为，在餐厅用餐结束时将餐巾/茶杯放在杯子里，对工作人员没有帮助或礼貌。
YSK认为，在餐厅用餐结束时将餐巾/茶杯放在杯子里，对工作人员没有帮助或礼貌。
YSK that putting your napkin/trasg inside your cup at the end of a meal at a restaurant is not helpful or polite to the staff.
from /r/YouShouldKnow