You should have decent driving skills, since most of the job is driving to and from remotes. They will run a background check on your driving record, so if there is anything that you feel needs an explanation (anything other than a parking or speeding ticket) then I would explain it in your initial interview, before they have a chance to objectively view your driving record.
Another necessary characteristic is self-confidence and independence. You will be alone for the majority of the smaller and medium-sized remotes, so you should be able to depend on yourself to entertain people. I’m an introvert and I found myself uncomfortable when faced with entertaining strangers, but I put my introverted side in my pocket so that I was successful at entertaining and you should be able to do the same.
Third, you must remember to relax and make sure that you are open and ready for change (remotes almost NEVER go as planned). You should be flexible and able to adjust to different situations.
This job is not a stressful one and the interview is even more relaxed, so I wouldn’t sweat it too much. You will get plenty of training as you shadow other technicians. You will only begin doing remotes alone when you express that you think that you are ready. You’ll be great!