How to rediscover a device on my iphone after accidentally pressing forget this device?

I have an iphone 4 and a macbook pro. I wanted to pair the two together but accidentally pressed the "forget this device" button and now my iphone will not discover my mac. How can I get my phone to discover my Macbook again through bluetooth?

Just set it up like you did the first time. Forget the device on the Macbook, too, and then add the iPhone as a bluetooth device.

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