To fall short (of)

Context #1:

Gabriel: Do you have any idea what this meeting is about today?

Katie: Apparently, we fell short of our monthly goal again.

Gabriel: Oh no! I thought sales were up this month.

Katie: Maybe in your department, but overall, our sales are down.

Meaning: The expression "to fall short (of)" means to fail to reach a target. It's often used with the preposition "of" when the target or goal is used as an object, as in the example above, where the company Gabriel and Katie work for failed to reach their monthly sales goal. It can also be used without "of," as in the next example:

Context #2

Monica: Did you watch the game?

Wayne: What a disaster!

Monica: I know! I had such high expectations for our team, and they were winning in the first half!

Wayne: Yeah, they really fell short in the second half.

Meaning: Wayne uses the expression "to fall short (of)" to say that the team failed to reach their target of winning. Notice that because he doesn't mention what the goal was, he does not use "of."

http://languagesystems.edu/ 

To look on the bright side

Context #1:

Amy: We need to save money.
Brian: Why do we need to save money?
Amy: Because we need to buy a house.
Brian: But a house is so expensive.
Amy: That's why we need to save money.
Brian: How much do we need to save?
Amy: We need to save enough for a down payment.
Brian: How much is that?
Amy: That's about $30,000.
Brian: Thirty thousand dollars! That will take forever.
Amy: Not if we save every penny. Besides that, look on the bright side! We're going to buy a very nice house!
Brian: Okay, okay. Here's seven pennies.

Context #2

Maura: I don’t know what to do.
Robin: What’s the matter?
Maura: Well, I’ve been looking for a job for months everyday. I send my resume, but I just can’t get a job. I think I’m going to be unemployed all summer.
Robin: Hey, hey, hey, look on the bright side. At least while you’re not in the office, you can sit outside and enjoy that beautiful weather.
Maura: You’re right. The weather has been nice lately.
Meaning:This is an expression that means "Think positively." People use this expression when they're talking to someone who's having a problem. After saying "Look on the bright side", the speaker then says something good that the person who's having the problem can be happy about. 

http://languagesystems.edu/