The verb cotton is used with on or on to to mean “to begin to understand something; to catch on.” Cotton used with to alone means “to begin to like someone or something.”

// It took a while, but they are finally starting to cotton on.

// She quickly cottoned on to why her friend was nudging her, and stopped talking just before their teacher entered the room.

// We cottoned to our new neighbors right away.

Adroit describes someone or something that has or shows skill, cleverness, or resourcefulness in handling situations.

// We marveled at how adroit the puppeteers were, the marionettes responding to each precise shift of their hands, each flick of their wrists.

To fawn over or on someone (usually someone important or powerful) is to try to get their approval through praise, special attention, or flattery. Fawn is also sometimes used—especially but not exclusively of dogs—to mean “to show affection.”

// Still new to celebrity, the musician blushed at the restaurant staff fawning over her during her recent hometown visit.

// I’d only been gone five minutes but the puppy fawned on me like I’d been away for hours.

Genteel means “of or relating to people who have high social status” and can be used as a somewhat old-fashioned synonym of aristocratic. It can also be used to describe something with a quietly appealing or polite quality, as in “genteel manners.”

// Their genteel upbringing shaped the way they viewed the world.

To cadge something is to persuade someone to give it to you for free. Cadge can also mean “to take, use, or borrow (something) without acknowledgment.”

// I don’t know how, but my brother always manages to cadge an extra scoop of ice cream on his sundaes.

// The last line of the poem is cadged from Shelley’s “Ozymandias.”

Zany describes people or things that are very strange and silly.

// The cartoon series centers around two zany characters, best friends who also happen to be space aliens, constantly amusing each other with outrageous antics.