"He is looking forward to it."
Translation:Er freut sich darauf.
There are two similar expressions:
- sich auf etwas freuen = to look forward to something
- sich über etwas freuen = to be happy about something
sich freuen on its own is basically to be happy.
It's the combination with auf that makes it "to look forward; to be in a state of (eager) anticipation".
sich auf etwas freuen means that what we are looking forward has not already happend but will soon . sich über etwas freuen means we have already get the thing
about which we are looking forward.
You can be happy about something (sich über etwas freuen) that you didn't know would happen and thus could not look forward to.