I made $900 for attending a conference (not a scholarship) and they took off 30% in taxes. Where do I put this on the 1040nr-ez?

Thanks.

Code 16 - Compensation for independent personal services.
Put as Other Income as F1 nonresident you are not subject to SE tax.
Read: Your U.S. Tax Return: U.S. Tax Filing Requirements for Non-Residents (http://taxipay.blogspot.com/2008/03/us-tax-filing-requirements-for-non.html)