Aimee
30
I would:
A - Give this expression: 
and carry on giving it , until the guy walks away 
B- Smile , say " well done " and walk away 
C- Time to do the nakli faint action !
D- Yeah , take my seat , I am just leaving 
I think Namaan is spot on about starting a random small talk and if the girl is interested she will respond werna she will walk off