Her positive attitude 'rubbed off' on other people. [=other people began to have a positive attitude from being around her]
We 'rubbed' the steaks with spices before we grilled them. = We 'rubbed' spices onto the steaks before we grilled them.
It's bad enough that he beat me, but the way he keeps talking about it is just 'rubbing salt in the wound'.
(..) - I'm trying to settle something here. - Well, I think this is important. Thank you. Now, then. I'm sure you'll pardon me for this, but I was wondering why you rub your nose like that. Come on, will you? At this point I happen to be talking to the gentleman sitting next to you. Now, why were you (..)1957 12 Angry Men