Whenever the licensing regulations of this code require a person to obtain a license as a prerequisite to "doing", "conducting", "engaging in", "maintaining", "operating", "carrying on", or "managing" a business, occupation or activity, such terms, or one or more such terms, shall include any person who holds himself forth as being engaged in the business, occupation or activity, or who solicits patronage therefor, either actively or passively, or who performs or attempts to perform any part of such business, occupation or activity in the city; and the omission of one or more of these terms shall not be deemed to exclude the activities described by the other terms where such activities are in fact carried on by such person. (1977 Code)