How to approach a native speaker without sounding like a robotic textbook?

I head to Northern Nigeria in a few months for work and I'm terrified of my first conversation. I've learned the 'book' Hausa, but I know it's not how people actually talk on the street. I’m thinking about using Chickytutor.com to simulate a market scenario to get used to the speed and common fillers, but I don't know how to ask the AI to stay 'authentic' rather than formal. Any advice?