I use it on a regular basis, straight away, for daygame
here's my typical approach with 2 diff colognes:
i look out for a girl, approach her directly if she gives eye contact, otherwise from an angle, smile, alpha language etc etc etc, you know the drill

"hey, i need a woman's advice on something, and you look like a proffesional woman, now, here i have two colognes, and i can't decide which one to wear for a date"
yeah....no time constraint...it works a charm anyway, i think it's because the date bit implies a slight time constraint if pulled off genuinely
from there, roll off in whatever direction you want to