<human>:  How do I invest in a 401k plan?
<bot>: To begin investing in a 401k plan, you will need to start by researching and selecting a 401k plan provider. Once you have chosen a provider, you will need to contact them to open an account, and they will help you determine how much of your income you would like to contribute, what types of investments you'd like to make, and how often you will contribute to the plan. You may also want to consult with a financial advisor to help you make the best decisions for your specific situation.