Hi, OP here!
Thanks for all the "tips" I got, especially those concerning eating options. It seems that my strategy will work fine, except the minibars at HI Express. ^
HI Expresss DO NOT Have minibars nor do they have lounges where they sell alcohol nor do I think alcohol can be consumed in the breakfast area unless the hotel provides it as an Manager's evening drink special and then it is only beer and wine !
Just to make you all understand: I truly don't like the tipping situation. The smile or other reaction that I get after I have given a tip is very confusing to me. I don't understand about having to pay extra to receive a smile or good service.
Still, I don't like to insult people by not giving a tip when it is part of the culture. That is why I simply try to avoid this problematic situation altogether.