Solve this mystery!

[xLukex]

I was taking the bus home today, and a younger (early 20s) black woman and her 3-4 year-old daughter sat in front of me. The mother was very frantic and couldn't keep still. She wasn't fidgety, just very high strung.

Anyways, she keeps shouting on the phone to some people telling them where on the bus line she is. Later, a friend of hers (white girl the same age) hops on the bus. She's carrying an empty purse (a medium sized one) with nothing in it. The black woman asks if "it" will fit.

The black woman is carrying $150 in cash, and the white girl doesn't show any. The white girl is much more relaxed and cool than the black woman.

So, where are they going? What are they buying?

I will answer any questions as best I can.

This is kind of like a hand reading exercise, but for the poker mind.

GO GO GO GO GO!