Flirting, now and even back in your days, is talk and eye contact and offering affection to see if it gets reciprocated. That is different from taking, grabbing, groping, displaying your genitalia, jerking off in front of them, slapping, forcing a kiss, or raping.

I'm not a youngster. Even back in the days when I would have been it was well known what was acceptable flirting and what was harrassing.