When I am talking with my close friend, can I say as follows?

Question

(My family members liked it. It is not concerned with my friends.)

1. My family liked it.
2. Our family liked it.
3. Our families liked it.
[#1 seems to be right. What about #2? Is #2 grammatically correct? How about #3? Is #2 used sometimes?]

Answer 1

All are okay. When you use "my", you are speaking only for yourself. "Our" speaks for more than one, as in parents speaking of their children - "Our children liked it" - or siblings speaking about the rest of their family, etc. "Our families..." might be said by a married couple about their respective birth families, etc.