One of the best data bases out there is from Geert Hofstede to understand cultural mental models. This resource gives a great understanding of cultural nuances that allows you to gather insight into deep cultural beliefs.
The 6-D model of national culture will give a plethora of ah ha’s and allow you to ask very deep questions about why people think the way they do.
I invite you to explore and wander down the rabbit hole of cultural understanding. In particular I recommend the country comparison tool for those working across cultures. 
If you consider yourself to be a change agent then this understanding is essential.
In what ways do you seek cultural understanding?
How can Geert Hofstede help your international journey?