The sentence "You could tell it’s/she’s been starving 😂" is grammatically correct, but there seems to be a confusion with the pronouns used. Depending on the context, you would use either "it's" (it has) or "she's" (she has).
1. If referring to an animal or something inanimate, "it’s" would be more appropriate: "You could tell it’s been starving."
2. If referring to a female person, then "she’s" is correct: "You could tell she’s


