You use 'try out' when you want to test something like a gadget, tool, or method.

Product Testing

'Try out' often implies that it's your first time using something.

First Experience

Using 'try out' can suggest a lack of commitment, as you are just testing.

'Try out for' usually involves a selection process for a team, show, or organization.

In sports, 'try out for' refers to auditioning for a position on a team.

When you 'try out for' something, it often involves a performance under evaluative conditions.

Companies 'try out' potential employees to see if they're a good fit for a job.

Use 'try out' when someone is assessed for their skills through actual work.