You print your tax return, use a pen and sign it in ink yourself. When you e-file a tax return, there is no physical signature on the tax form; you "sign" electronically by entering your AGI. If someone like a lender or college is requesting a signed copy, you keep them happy by signing it on the line that says "Sign here" by using a pen yourself.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**