I've started table hopping and I want some idea on how well I'm doing as far as enhancing the restaurants profitablility. Right now I work stictly for tips, but I am going to want a salary as well. What should I look for

Repeats and calls asking if you are there. Plus talk to the servers they will tell you if the table came in to see you. I wish you had not started to work for tips only. I think you are going to have a hard time getting the restaurant to pay you after your willingness to work for tips.
Good luck. Try to get as many people you know to call and ask over the phone when your there and get people to come see you. Also when they do come they need to talk about you to the servers and host. You might want to have some comment cards made for yourself and ask every table to fill them out. Hand these into the managment.

Flooglestreet,
I have some regular restaurant gigs and never solicit tips. I made it clear to the management when hired that I didn't want the patrons to feel like they had to reach in their pockets not only for the wait staff, but for me too.

I am to be compliments of the management. Also you will get more repeat customers if they know they don't have to dip into their pockets when you come around. If you are good with people, you will be a benifit to the restaurant. Calming down the kiddies, making a first date less stressful, making someone's birthday special, smoothing over long waits for food and a dozen other benefits.

You should focus on these points and work out a reasonable hourly salary. Rule of thumb: The price of a decent meal X 2 per hour depending upon your experience. Maybe a little more. Hey, if you bring in at least 2 customers per hour they pay for you....
Hope this helps
David Paul