How do I make my photo less blurry?

You may not be able to work miracles depending on how blurry this original picture really is. If you show us the image, we can petter assist you

Corrective techniques are dependent upon the source of the blur: camera shake or focus. If you post the image it would make it easier to provide a specific approach to help you. 

All is depending on why and how much blurry the picture is. Shake reduction filter is indeed the first option to try. But do not expect wonders (even that the filter does wonders). Bad pictures stay bad...

You can try experimenting with the Shake Reduction filter.