Wiktionary
vb. (context idiomatic English) To adapt to a way of behaving after constant exposure to it
Usage examples of "rub off on".
No more reporters should be bothering to call, since Marci had given them their story, but considering the timing, the call was probably from someone who knew her and had just heard her name on television and wanted to talk to her, as if her fifteen minutes of dubious fame could somehow rub off on him/her by association.
I ground my cleft against his stiff rod, feeling some of my wetness rub off on him.
He moved away just slightly, as if embarrassed, or as if the air of morbid violence clinging to the mercenary were a contagion that could somehow rub off on him, if he got too close.
His luck was best with random things, like dice, but perhaps a little more was beginning to rub off on cards.
When one of your neighbors was doing well, you wished him all the best of luck, hoping some of it would rub off on you.
The VP, envying this talent, took to cultivating Norman House in the hope that some of it might rub off on him.
I had hoped your inclinations might rub off on Miss Elphaba, but that they haven't is only firmer proof of Miss Elphaba's iron character.