Which expression means to change your mind after thinking more about something?  It is:

After lunch, I like to catch forty winks before going back to work.  This means:

I like to exercise my eyes by winking them.

I like to flirt with people passing by my office.

I like to catch the attention of other people.

Even though we didn't tell Sylvia about the surprise party, she put two and two together.  This means that:

She is good at math but doesn't like parties.

She encouraged men to invite women whom they liked to the party.

She noticed our preparations and concluded that we were having a party without anyone telling her.

We can eat Chinese food or Mexican food.  It's six of one, half a dozen of the other to me. This means:

Either Mexican or Chinese food is acceptable to me.

Ben and Jerry's ice cream is second to none.  It is:

At first sight, I was not impressed with the restaurant. However, after I tasted the food, I changed my mind.  This means:

I liked the restaurant from the beginning.

I did not have a good first impression of the restaurant.

I was not able to see the restaurant for some reason.

Finding the best fishing spots is second nature to Mandy.  It is:

Maria has a sixth sense when it comes to navigation.  This means that she:

makes good predictions about the best path to take.

When a person is in seventh heaven, she or he is:

dead and has gone to the highest level of heaven.