First time kata bhetyo, k garyo, explain scenario, some details about the companies u had.
When u got engaged, where, who proposed. 
Each other's family members details, like name, what's going on, how often do you talk to them, what do talked about last when u had a conversation with them last time, what do you call them.
Each other's job, or what they do.
Details about the house you both living in.
It's good to keep the details about everything.
Prepare for being interviewed separately!!!