Broccoli choo choo

When you don't know how to either answer to a message or simply to tell the other person that you've seen the message. A smiley face ":)" also has to be added in the following message.

Person 1: Hey man, how's it going?
Person 2: Pretty good, my grandma just died.
Person 1: Broccoli choo choo
Person 1: :)

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