Make up one's mind
Meaning/Usage: Make a decision
Explanation: This is usually used when someone can't make a decision. Not only does it mean to make a decision, it also implies to do it quickly.
We don't got all day, make up your mind.
Make up your mind, we don't have much time.
I can't make up my mind. Can you help me decide?
If you don't make up your mind, I'll choose for you.
Both of them look really good. I can't make up my mind.
A:
I don't know which one to get.
B:
They're both pretty good, so just pick one.
A:
I always regret it when I pick the wrong one.
B:
You're picking between white chocolate or regular chocolate. There is no wrong answer so hurry up and make up your mind.
Other Common Sentences
I can't decide which one to take.
I don't know if I should get the Volvo or the Ford.
I like both of them too much to decide.