friendly (kind, pleasant, and supportive towards others): He is friendly to everyone.
pleasant (friendly, polite, or nice): Harold has always been very pleasant to me.
amiable (having a pleasant and friendly manner): Mike was in an amiable mood.
affable (easy to talk to; approachable and friendly): Jane is highly esteemed by her colleagues for her affable nature.
genial formal (cheerful and pleasant in manner or behavior): The manager is very genial.
welcoming (pleasant and making you feel welcome): The hotel staff were exceptionally welcoming.
warm (friendly and kind): He greeted us with a warm smile.
hospitable formal (warm and welcoming to guests and visitors): The local people were very hospitable to newcomers.
cordial (friendly, but polite and formal): The two countries have maintained cordial relations.