挑剔 (tiāo ti): придирчивый

My mother has high standards for food; she always nitpicks the dishes I make, complaining that they're either too salty or too bland.

The waitstaff at this restaurant have a great attitude; even if customers are very picky, they patiently meet their demands.

She is extremely picky when buying clothes; the color, style, and fabric all have to be perfect, so she often shops all day without buying a single item.

When looking for a job, don't be too picky; gaining experience first is more important.