friendly
The German word 'freundlich' is used to describe someone or something as being friendly or kind. It can be used as an adjective to describe a person, for example 'Er ist sehr freundlich' (He is very friendly). It can also be used to describe an action or situation, for example 'Das ist eine freundliche Geste' (That is a friendly gesture).
She is very friendly.
This sentence is a simple declaration that a female person is 'very friendly'. In German, the adjective 'freundlich' is used to describe a person's friendly demeanor.
Be friendly to others.
This is a command or suggestion for the listener to 'be friendly to others'. The German verb 'sei' is the imperative form of 'sein' (to be), used when giving a directive.
The service wasn't friendly.
In this sentence, 'freundlich' changes its implication to refer to a non-person entity, here 'the service'. Describing a service as 'friendly' could imply the service being user-friendly or people involved being polite and cordial.