. Know their interests from your GF before meeting.

Ice breaking on such task here. You can’t expect your GF’s parents to be so talkative who instantly jumps into a conversation. Sometimes indeed most of the times it could be you who has to open the conversation. It is suggested to do some research on their interests knowing from your GF before meeting them. Speak on some common topics where you could glide the conversation so smooth rather than giving it a scope to stop it somewhere. In short, keep the conversation going.