Just reflecting on one of my favourite songs (my phone's default ringtone) - Parisienne Walkways by Gary Moore. I always described the opening as a riff because it is repeated 2 or 3 times during the song but I am not so sure now. Maybe too long for a riff. Maybe it's a lick. I am no real musician so can someone tell me how to spot the difference?

And, yes, I know Google will but I like real people more :-D