In 90's hipster slang: Go with the flow
I thought that was 60s hippie slang.
Hm, afaik "the flow" was a concept of the early 90's.
For example, "groovy" was more a popular 60's hippy slang term, imho.
But i might be wrong, i was born in the 70s and "go with the flow" was a revived phrase.