Hi! I struggle with maintaining eye contact.
It is an important skill to have as it has a huge influence on our behavior socially.
I am a very sociable person but eye contact is hard to maintain when I am speaking to unfamiliar people.
What is expected really varies between societies, especially when you think about religious context.
In what terms would eye contact not be appropriate? 
When people want to maintain their privacy around strangers, especially in crowded places, they avoid eye contact.
Understandable, what are good tips on maintaining eye contact when you're just nervous?
I think it's easiest when you do it as a way to flirt in order to see how interested they are.