Choosy sense is rather hard to grasp. It refers to someone who is vitally selective and judgmental. A persnickety individual frequently nitpick and does not settle for less when it comes to standards and flawlessness. Their fastidious nature can be seen as admirable, but it can also exacerbate excessive censure and unjustified dissatisfaction. Being persnickety is typically connected with meticulous attention to detail but can also be seen as a manifestation of perfectionism.
Persnickety definition in American English