sales talk vs packaging

sales talk and packaging both are nouns.

Word	Noun	Adjective	Verb	Adverb
sales talk	Yes	No	No	No
packaging	Yes	No	No	No

As nouns, packaging is a hypernym of sales talk; that is, packaging is a word with a broader meaning than sales talk:

sales talk: promotion by means of an argument and demonstration
packaging: a message issued in behalf of some product or cause or idea or person or institution

Other hypernyms of sales talk include promo, promotion, promotional material, publicity.

sales talk (noun)	packaging (noun)
promotion by means of an argument and demonstration	the business of packing
	material used to make packages
	a message issued in behalf of some product or cause or idea or person or institution