It doesn't hurt to scope the area for any items that may be classified as weapons.
Yardstick: If Jason Bourne can kill you with it, then step away from it.
Etiquette dictates that it is always polite to let the lady in question speak, (preferably till she chokes from lack of breath).
As you'll likely be catering a rather larger group than you expected, it's preferable to bring along your old posse Monsieurs 'Visa' and Master Card'.
However, if a man is placed in such hardship, he is advised to always be polite, act scared (which isn't likely to be difficult) and project ample amounts of 'I'm Still in the Closet'.
Tip: Avoid at all costs, but look very serious as the array of threats are being delivered.
Phone Privileges: You are mandated by all desi dating laws to give your date loads of credit upon request; nothing says I'm not superficial or a gold digger than daily requests for more credit.
The cellular industry is certainly a boon in this matter.