Besides teaching your dog to sit patiently in one place, the most important cue is to get him to look at you with a cue word. If you properly associate a cue like "Watch Me" with your dog giving you his attention, you will be able to win the "battle" against distractions all the time.
Start by having your dog sit indoors with you standing in front of him. Watch for his gaze to shift upward toward you. EVERY time he begins to look up at you, say something like "Watch Me" followed by "Good boy" and a treat. After some practice you should move this exercise outside, and eventually you will be able to remove the actual treat from the steps.
The end result should look like...
Growing up in the country in Pennsylvania gave me tons of experience with animals from a very early age. I later pursued a career in horseback riding and also have experience as a veterinary technician. I have a strong passion for animals and have an uncanny ability to connect with all sorts of furry friends.