Okay I'll give you guys a basic idea/scenario
For those who live near/in Woodbridge will be familiar with the plaza at hwy 7 and woodstream...plenty of people hanging out there...
I'd drive in and park
I see three guys sitting in their honda civic, engine on, windows down and its -5 out...strange right? Maybe not, but windows down means their smoking right? So I walk over and talk to them
Me: hey guys how are ya tonight?
Kids: good
Me: what are you up to tonight?
Kids; just grabbed a coffee and having a cigarette
I don't see or smell anything but coffee and cigarette smoke
Me: have a good night guys, stay warm
9 times out of 10 this is the extent of the conversation. Not lengthy, not a violation of their rights.
By all means they don't have to answer anything, but most of the time I gets answers like that.