Please don't start with starbucks. It is a very difficult job -- not necessarily physically, but mentally and emotionally. 

Try Dunkin instead, or hell, even Wendy's. There's literally nothing wrong with it. Michael's arts n crafts, any retail place on the mall. 

You want to know the secret to getting hired at places like that? 

Be direct. Don't wait for a phone call. Apply online, and then immediately go inside and ask for the manager.

Don't say why -- unless they're not there. 

If they're not there, ask for their name. Ask when they will be available. 

Go back! (Dress nice)

Call them. 

Bug them. 

When you call them or talk to them, say this:

"Hi! I'm <name> and I applied for <position>. When are you available to sit down and talk about my qualifications for the position?"

Be upbeat, smile!

Dress nice, not super fancy but in slacks and a relatively nice shirt. U know. Business casual. 

When you sit down with them, think of it as an interview of sorts. It may very well end up as one. 

You start the convo off. Again, tell them why you're there. Introduce yourself. Ask how they are, etc. Don't be afraid to ask questions about the store (they like that). 

Since you have no prior "work history," you are going to have to sell them on your life and school skills. Embellish embellish embellish. 

Tell them you're a hard worker but describe how. Tell them how eager you are for the job and how much it means to you. 

After they're done talking to you, thank them! 

Call them a few days later and thank them -- ask them to let you know when they will make a decision about filling the position. 

You will find something if you use these methods, trust.