I had been driving up a hill toward my apartment years ago during a huge snow storm. I see halfway up a group of guys pushing their car up the hill, too slippery to just drive up. I get out, go and help them. Turns out they are ukrainian and don't speak english but it was universally known what was going on so no need to communicate. I help get them up and go back to my car, it had all wheel drive but the lack of momentum made it so now I couldn't get up the hill but luckily the guys understood and came down and helped push me up the hill. No communication necessary.