everyone is different OK ! what about you
yes unless you are saying somthingmean
Yes
Yes
yes
No
yes because lets saying the beach is a big pond and has tons of the same fish
It is ok or not it depends on her style of saying.
Yes, you can use both at the same time.
yes
Yes, that's fine. If you don't feel the same way yet then you shouldn't say it back. The nicest thing would be to say Thank You.
Yes, they are two ways of saying the same thing.