Hey geeks,
Just like all of your different effects, you want to make the approaching lines or patter your own. Walk up, or if standing next to them already, go ahead and get their attention either by starting to talk to them or pulling out your cards etc.
Sometimes I may just walk up, shake their hand (firm grip, but not too tight, just to show confidence), introduce myself, produce my deck (from a palm) and go into whatever patter “I’m doing an experiment for school on probability and people’s ability to pay attention to certain actions.”
Be confident, create your own lines, make it your own and make it to fit your character