I have been trying a lot of different teas lately, and lurking on tea boards, and I amazed at all the things people say they can taste in individual teas (and coffees, and wine, and even water). I will never develop that kind of refined palate in RL, but I think it would be great to have one in Glitch.
So I propose a tasting skill, one that would involve first imbibing beverages and foods, then licking objects, maybe also sniffing them since taste and smell are so linked, quests for rare and powerful things to taste/smell...
OR developing synesthesia: en.wikipedia.org/wiki/Synes...
...something else you can't really develop but has always fascinated me. Maybe all the tasting/smelling would lead to a synesthesia-type of advanced skill.