OP Sir...
this is what I call my day game, it should be your only game.
All other game plays off if it because it is you.
for me it is my style, I am a chatty guy especially with cashiers and a casual random comment.
My recent past was LTR's without stop, now I am single and abit timid to fire that ask out gun. My GFs were always telling me to stop flirting, and I wasn't aware I was. With a simple extension to my already casual and commentitive personality, I now throw in what I've learned here and elsewhere.
dont ask for numbers
instadate / set a clear time/place directly to her face, after work 8pm at XYZ
if you dont instadate, walk away happy as it is not easy to pull the trigger
the more times you shoot, the more accurate you become
be direct, and suggestive, smile as if you have a funny secret..
look them in the eye, notice if they smile back? look down?
deflect the boyfriend directly "I didnt ask if you had a BF, I asked you out for a drink"
be confident and outcome independent
(you didnt have a date with her before you didnt ask...)
/me gets popcorn