On April 17th you can flirt with anyone you want without cheating even if someone is dating someone else.
"Hey cutie"
"I have a girlfriend"
"so? Its national flirt day!"
On April 17th
You can flirt all you want without anyone getting mad at you. So if someone has a bf/gf you can still flirt with them.
"Hey cutie"
"I have a girlfriend"
"So? Its national flirt day"