Final answer:
The use of jargon, slang, and colloquialisms in professional settings is generally not recommended as it can be seen as unprofessional, potentially causing misunderstandings with customers.
Step-by-step explanation:
The statement that jargon, slang, and colloquialisms are friendly terms/phrases that make customers smile and should be used often is False. While they may seem informal and approachable, using such language in professional settings can often lead to misunderstandings or be perceived as unprofessional. Specific terms or jargon, enunciating clearly and using respectful language are all important aspects of effective communication. Colloquialisms, which are informal words common in everyday speech, may not be appropriate in a formal setting. For example, the word "hella" is a colloquialism originating in California that may not be well-received in a business context. Approaching communication with customers requires understanding the appropriate register and context to connect effectively without conveying an unprofessional image.