Hi Rudy....
Checked out your Tumblr page.... image wise, you seem to be a competent shooter (don't take that comment wrong... there just isn't enough images to to say much more).... so keep your friday shoot simple. Leave enough time to think things through. Have a shooting plan already made up. You don't have to follow the plan when you get there, but it will give you something to fall back on - plus you can very quickly scan down the list and make sure you've got all the shots that you think you need.
One thing on your Tumblr page concerns me : you say "...fully of my own stuff like the photos i take but i will reblog whatever catches my eye ... " But you don't identify which shots are actually yours, and which shots you have 'reblogged'.
As a courtesy to other photographers, please at least identify which images are 'reblogged'. And better yet, ask them if it's OK reblog. I notice on your Flickr page you claim copyright, and all rights reserved. That means if I wanted to reblog any of your images, I would ask you first for permission. I trust you are returning that courtesy. Like Danny Todd's images.
If this a paid gig, get in writing who owns the copyright to the images. You are starting to venture into the business/commercial side of the business now. Depending on where you live, you may not automatically have rights to the images. Putting someone's image on your Tumblr/Flickr page may be seen as commercial use if you are then using those pages to drum up more paid gigs.
Make sure your batteries are charged. Have a spare set. Have a spare memory card. Probably too soon to recommend a spare camera. Probably too soon to start worrying you about taxes and insurance. (A friend in the insurance business tells me that, by far, the most common insurance claim for photographers is to cover the cost of the "thing" they knocked over while shooting. When you have camera to your face, and your concentrating on the DoF, shutter, exposure, and then you start moving around to get that better angle - you bump into things. Cheaper than an insurance policy is to bring a friend whose job is to watch your back. And to keep their mouth shut.)
If I had to make one suggestion about your shooting.... you need to pay more attention to your backgrounds.... you have too many trees growing out of people's heads. Way too many.
Luck.
ps everything Doylem above said is also true, and good advice....