Assuming we're talking about an 'uncontrolled' social setting - such as a bar or night club - 'etiquette' is what you make it.
Country or not.
What I do is attempt to follow the line of dance while remaining flexible to change this at a split second's notice.
I often travel backwards myself so as not to use the lady as a ramrod......
While she turns/spins. I tend to hold out my free arm as a sort of 'barrier' against possible collisions.
Doesn't always work, but my heart's in the right place.
(Which is actually the wrong place, but that's a different topic altogether.....)
There will be many couples doing many different things, regardless of the music - most of them 2-Step to everything (including Waltzes, Cha-Chas, Swings.......), some of them Swing to everything.
Not to worry, just do what you're supposed to and slalom around them.
You will take the occasional hit, dancing is a contact sport, it's ok as long as it doesn't descend into an ice hockey grudge match.
Get used to your shins being kicked, toes squished and heels trampled, that is daily par for the course and you need to quit even noticing it.
Take up skateboarding and you won't even feel whatever they do to you on a dance floor.
)
