Natives Behave Badly, How To Tackle?

I'm Student In The First Year And I Know Less Russian Language. I Used to Play Sports Like Volleyball In Night With My Friends Regularly, But Today While Returning, Some Drunk Guys n A Girl Approached Us Saying If We Could Click A Photo Of Theirs, Unaware of Their Intentions We Clicked Their Photos, Then They Wanted to Take A Photo With Us, We Thought That They're Generously Asking For A Photo With Us So We Clicked A Photo. Then They Asked Us To Record A Video And Told Us To Say I Love Kuni, We Asked Them What's That They Said That's Another word for love 🤷🏻‍♂️ We Believed Them And Said That In A Video And Now When We Translated It We Found That We Were Talking About Oral Sex 💀🤦🏻. Now Being Unaware We Said Such Things But Now I Want to Know How To Tackle With Such People So That I Can Never Stuck With Such People And Now I Also Understood That Why You Should Learn Russian Language Faster 😮‍💨

TLDR; People Behaved With Us Badly, Now How To Handle Such Situations?