Most Helpful Guy
Honestly it's a respectful thing not to kiss around eachothers families and friends.
I've been with my girlfriend for almost 4 years and we still don't do it.
My advice is to just subtly show that you two are close my grabbing/hugging him every once in a while.
Most Helpful Girl
No, kissing on the lips is intimate so I would not do that in front of my family. At most a kiss on the cheek but I'd rather not do that anyways. I wouldn't like it if my boyfriend kissed me in front of his family either