Based on the information you have provided, you only need to file a tax return if any taxes were withheld from your W-2 income, and you desire to get those withheld taxes refunded to you. Take note that only the amount shown in box 2 of your W-2 will be refunded. The amount shown in box 4 (social security) and box 6 (Medicare) are never refunded.
Be aware that if you have any self-employment income that gets reported on SCH C, and that income is more than $400, then you are *required* to file a tax return.
