I am strong advocate in situations where you are sure that the woman will be there again, which is in this case, then have a flirtatious and light conversation for like 3-5mins and then leave without asking for numbers
in most cases.
For example if she is in a clothing store,
Open by asking something like this "Hypothetically, if we go on a date tonight, what would you prefer be to wear?"
and then carry on the banter.
Always introduce yourself, ask something about her and in the middle of the conversation cut her off and compliment like "I am enjoying your energy and your presence" and continue the conversation.
While leaving say " I would love to see you again and explore you".
Now if she takes the lead for exchange of number by saying "Yeah I am free on friday night" then go for the numbers otherwise leave and when you come back again, continue the same thing..
I take bootcamps and do SPAM coaching in India (Mumbai, delhi, banglore,punjab)
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