Geminis can do a lot of things, but they can't work if...
Your quick and agile mind needs constant stimulation on the job, and you're not one to hide your feelings if you're bored.
In fact, you're no good to anyone if your real talents are overlooked. From sighing and rolling your eyes to building a huge ball of rubber bands, you're just not productive in that state.
Finding a job that supports your need for creativity is crucial for a Gemini. You don't like doing routine or mundane tasks, so certain positions can be factored out right away. You're happiest when you can be talking, texting, chatting, or emailing with your clients.