What can i do to assure i get this part-time job that i want?

i saw an ad in a newspaper about cleaning kennels at a small animal clinic. i applied there yesterday and i really want the job! it's a big thing for me because i love animals and im committed to getting a job working around them. how can i make sure i get the job?
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call them... put forth the effort to show them that you are interested and ask them question to see how if they have started looking at the applications yet, who knows maybe they will look at your right away. then once you get an interview, send them a thank email.
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I can serve as a reference for cleaning my LAIR even though you have not. Seriously, just be confident and let them know how dedicated you are. Loving animals is a great thing to mention, however, do not oversell yourself or seem too eager. You might include other ways you can help out if you have other skills in that area. If your schooling revolves around animal care bring that up. Good luck and I hope you get it.!

DRAGON 2012
"Great fortune for U.S."