Asking : what do you opinion about my girlfriend.

Give :  in my opinion she must be mine
Asking : 
-What is your opinion?
-What do you think?
-What is your point of view?
Give opinion :
-In my opinion ...
- I think ...
- My point of view ...

Example :
A : What do you think about BJ Habibie?
B : I think he is very smart, he is one of the Indonesian heroes, and he can make train and plane