Hi Douglas:
Wow! Nice profile! You certainly seem to be in the right profession as a Rover sitter! I don't want to nit-pick, but do you only have 3 years of ALL experience taking are of dogs? Many of the sitters here don't come from professional dog sitting backgrounds, so we include the number of years we've had taking care of our own dogs, as well as sitting for friends and family's dogs. So maybe you can have your total years of experience in dog (or pet) care as the number listed in your profile, and add a blurb regarding it in your "About Me" paragraph. For example, "out of the 15 years I've been caring for dogs, 3 have been as a paid professional/volunteer" or something similar.
You should also get at least 2 testimonials from friends and/or family members that are familiar with your love and care of dogs.
It's good that you ordered business cards. When you get them, you can go around your service area and talk to people about your services....local veterinary clinics, dog groomers, pet food & supply stores, etc. while you hand out your cards. It's always good to get your smiling face out there in the community! Does your neighborhood have a Next Door page? If so, advertise your services on there! You can use your links to your profile and discount code from the Dashboard to help sell your services. You can also place an ad in your city or county's buy/sell/trade face book (closed) group page. You could also make flyers with tear off tags to hang on the local grocery store, or community center bulletin boards. Maybe (now or in the future), you can order yard signs to be posted near the trails that you mentioned in your profile (remember to get permission to post them first :)
I got lucky with my first client (I'm fairly new to Rover...since November) and she found me by doing a search for a sitter on here. My second client came from handing out business cards. (see why it's important to get your smiling face out there?) As far as meet & greets go, I always offer to meet during daylight hours in a neutral area, such as a park. I take along my "Rover bag" that has a notebook, pens, my business cards, a roll of poop bags (not that I show them, but just in case the potential client happens to look in, it looks like I take my job seriously). Have a page in the notebook with the clients Rover number and pet's name and then take notes while you're talking. Always shake hands with the pet parents before petting the dog! Sometimes, that one is kind of hard to do!
Welcome to the Rover community, and good luck!