To generate a list of tags applied to the current tiddler:
<<tags [tiddler]>>

Note this will not display any tags that are themselves tagged excludeLists.
For instance if there is a tiddler called "foo" tagged excludeLists and the tags macro is run on a tiddler with the tag foo, this tag will not be displayed.
bag
tiddlywiki-com-ref_public
created
Fri, 11 Feb 2011 14:39:54 GMT
creator
colmbritton
modified
Fri, 11 Feb 2011 14:46:10 GMT
modifier
colmbritton
tags
macro