Does anyone have a universal cold approach method on girls that they use every time because it works most the time?

I feel like my relationship life has really taken a hit due to covid and it's currently non-existent. But I feel like I am ready to grab myself by the balls and start walking up to strangers. However, I never know what to say. Does anyone have an approach that works everytime? Something funny or flirtatious, but remaining not creepy?