Must have been Pakistanis, as opposed to Indians. Most of the Indians I know are faily well assimilated, most of them are even rabid Dallas Cowboys fans.
Funny, people seem to have different experiences than I did. Most of the South Asian immigrants in my hometown were Hindus, a few were Sikhs, and there were also Muslim immigrants from Pakistan and from Bangladesh. I'd say the Hindu children, particularly the girls, had more freedom from their parents to dress and behave like American teenagers, but often I didn't even know if a classmate was Muslim or Hindu and it didn't come up.