The word "nose-picks" is quite informal and can often be considered impolite or offensive. It refers to the act of picking one's nose, which is a socially unacceptable behavior in many cultures. Some words that can be used as synonyms for "nose-picks" include "nose-mining," "nostril-exploration," or "nasal-excavation." These words are not as commonly used as "nose-picks," but they convey the same meaning and can be used in a more professional or formal context. Regardless of which word is used, it's important to remember that nose-picking is generally considered an unhygienic and undesirable habit.