Too early to try and sell them on anything. Call them up. "Hello, this is cosmorocket, and I'd like to learn more about your industry. Can I stop by sometime

Too early to try and sell them on anything. Call them up. "Hello, this is cosmorocket, and I'd like to learn more about your industry. Can I stop by sometime and ask you some questions? Perhaps shadow you for a little while? I'll bring coffee and danish." Just watch and listen. If you see them get frustrated by something, give them a moment then ask "So, what just happened?"