Are winky faces always flirty?

Anonymous
So me and this guy were working together on some class project & he was helping me with a few things. We got on well and he told me that i looked good last week too. He's five years older than me & I'm 20. I texted him yesterday to say thanks for all the help and best of luck with his operation that he was gonna have and he texted me back to say thanks and take care and he put a winky face at the end. Was this just an emoticon or flirty?
Are winky faces always flirty?
13 Opinion