[header] How to preserve a signature on an article of clothing [title] Let the ink dry. [step] Touching the ink before it's dried might smudge or smear the signature. If you're wearing the signed piece of clothing, it may be best to carefully remove it to allow the ink to dry. 
Set the clothing down where it won't be disturbed until it's dried. You can usually tell that it's dried by looking at it in the light; if it doesn't shine, it's probably dry.