When you turn in an application, talk to someone in charge right there, and try to get hired on the spot. If the boss aint there, ask when he will be, and come bak then. I'm 34 and i've VERY RARELY turned in an app, without talking to someone, and have them call back. I usually dont even fill out an app until I've talked to someone
You need to show initiative. For any entry level position, the boss is too lazy to sort through applications. He's most likely gonna hire the first person worth a shyt who talks to him in person. Grabbing an application, filling it out, and dropping it off is a waste of time. Its equivilent to giving your phone number to a random girl, and waiting for her to call back.
When you want a job, go somewhere you know is hiring, and ask to speak to the manager. If they are there, talk to them, If not, ask when they are there, and most likely to have a spare minute to talk to you, then do just that. If you are looking into a restaraunt, go at a slow time of day, either before 11:00 am, and between 2 and 5 are usually good times.
If you dont know that the place is hiring, fill out your app, and only turn it in, when someone can talk to you, and you can make a good impression on them in person. Then MAYBE he will remember you if a position opens.
Also, just act like you can do whatever job it is, like its a piece of cake.
The easiest way to get a job is through friends. Ask all uyour freinds with jobs, if they are hiring. A manager will usually hire employees friends sooner than street walk ins.
Keep in mind, I am talking about general, entry level stuff here, but many of these rules apply to more experienced positions too.
Are you going for anything in particular?