There are two ways to find citing publications in Web of Science.
Caveat #1: Web of Science will connect you to the publications in that database that cite your article. This might not include ALL citing publications that exist.
Caveat #2: Web of Science enters citations exactly as they are found in published bibliographies, even if they are incorrect citations.
Caveat #3: A citation count doesn't tell you why an article was cited. You'll need to review the citing articles to find out.
Go to Web of Science. Search for the title of the article you're interested in.
When you find the article, you'll see a link to the articles that cite it (along with a link to the references from its bibliography).
In Web of Science, click on Cited References. Then enter pieces of information about your article of interest, preferably the first author's name, the name of the journal, and the publication year. You'll want to look up the official abbreviation of the journal in the abbreviation list. In this example, this is the official abbreviation for Journal of Autism and Developmental Disorders.
There will be one or more matches. In this case, this article has been cited two different ways. Most of the time this article has been cited, it's been with the full citation, but two articles didn't include the volume or page numbers. Those two articles wouldn't have been captured with Approach #1 above. Click on all the citations that match your article, and then click on see results. You'll see 90 citing references.