To signal a woman at a nightclub by nodding your head. The cabeceo is a flirting technique that went out of style decades ago (it is the traditional way to invite a partner to dance in Argentine tango halls).
I was trying to cabecear her from the other side of the club, but the chick either did not see me or she was just playing dumb.
To win someone's trust through fake flattery and acting like a suck-up, only to betray them later. (chupamedias is a common slang term for a brown-noser).
The chick engatusó me, I took her back to my place and, when I fell asleep, she stole all my money.
To smooth-talk or bullsh*t someone into believing something without having real arguments (in Argentina, it often refers to flirting or using fast talk to get your way).