Evaluate expression in GNU scheme

When I hit enter in Scheme it inserts a newline rather than evaluating. How do I make it evaluate?

>>3
Wow!  You leveraged Google to discover ENTERPRISE QUALITY basic usage of the tool you're learning?  Pin a fucking medal on this guy and shut [spoilers]/prog/[/spoilers] down!  Now that >>1 can RTFFFFFFM we no longer have a purpose!

You're right though, >>2 really screwed up when he replied to your thread.  He should have told you to fuck off like anyone else would have.  I guess he won't be making that mistake again.