How do I get the boy at the playground to talk to me?

Hint 1 of 7:

He looks like he's very bored.

Hint 2 of 7:

Do you have anything you could give him?

Hint 3 of 7:

You probably don't, but another kid that you know might.

Hint 4 of 7:

Try talking to Wiggins on Baker Street to see what he can do.

Hint 5 of 7:

Buy the gyroscope from him.

Hint 6 of 7:

Then you'll be able to USE (not GIVE) the toy on the boy.

Hint 7 of 7:

Talk all you can to get some information.