When you sign up to Parlour as an Artist, you get a fancy Artist profile page like the one below.
We've set them up so that when they're shared on facebook they look like this...
All you have to do is copy the URL of your Artist Profile (eg: parlourgigs.com/artist/eastward) and paste it into a post on your Facebook Page along with dates that you're available.
It also helps to put your Parlour Profile on your website and in the about section of your Facebook page.
You can also do a shout out at venue gigs you play for anyone who'd like you to come play at their place.