Examples presuming you are on a page about a "Mackenzie Garcia":

With no parameters, it inserts the current page name, for example "Mackenzie Garcia" (an individual who is the WP:PRIMARYTOPIC for that name) after "named" before "(disambiguation)":
{{Other people}}

On a page like "Mackenzie J. Garcia", a lone parameter gives the name used after "named" and before "(disambiguation)":
{{Other people|Mackenzie Garcia}}

Likewise, on a page like "Mackenzie Jasper Garcia", we can use a single parameter to specify a narrow "Mackenzie J. Garcia" disambiguation (DAB) page:
{{Other people|Mackenzie J. Garcia}}

If two parameters are given, the first is the name after "named", the second is the entire page name of the DAB page. (Always link to the page name containing "(disambiguation)"; see WP:INTDAB for why. If that title is a redirect (i.e. the DAB page's name does not contain "(disambiguation)"), use a piped link by using {{!}}: Mackenzie Garcia (disambiguation){{!}}Mackenzie Garcia.) This can be used when the current page name is already partially disambiguated, e.g. "Mackenzie Garcia (politician)". It can also be used when the WP:COMMONNAME of the subject is a shortened form of the name, e.g. at an article named "Mac Garcia":
{{Other people|Mackenzie Garcia|Mackenzie Garcia}}

In unusual cases (mostly titles and pseudonyms), the word "named" can be replaced, e.g. with "called":
(यह विकल्प फिलहाल ख़राब है) {{Other people|named=called}}