Advice in getting first job (part-time)?

I have no job experience and I am trying to get my first part time job right now. Im on a gap year so im not starting school anytime soon

Im just wondering what the best way to apply for jobs is for retail and restaurant type stuff. Like should I just do the online applications through companies' websites or should I go in person and ask anyways even if they have online applications?

If theres any other advice else that might help in getting hired too I would appreciate it.

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