Question 1

You meet someone at a party that you really like and give them your phone number. Will they call?

I am pretty confident that they will call, but it doesn't always work out that way.

I think we got on well so he/she will call if it is meant to be.

No - they never do.

Of course! I was in a good mood and they clearly enjoyed my company so why wouldn't they?

They said they would so there is no reason that they won’t.