adding conditional in headinclude

[bongwater]

I would like my member profile pages to have customized meta keywords and descriptions with the following modified code:

<meta name="keywords" content="$userinfo[username],$vboptions[keywords]" />
<meta name="description" content="$userinfo[username] $vboptions[description]" />

I understand that this involves adding a conditional in the HEADINCLUDES template.

The question I have is, what is the variable to use that will call the memberinfo template? (see below)

<if condition="$show[????]">
****NEW META CODE ***
<if>

thanks