There are several synonyms that can be used in place of "were friendly." Some examples include "affable," "amiable," "cordial," "genial," "gracious," "welcoming," and "approachable." These words all suggest a warm and inviting demeanor, but each has its own subtle nuances. "Affable" implies a willingness to converse and engage with others, while "amiable" suggests a generally pleasant disposition. "Cordial" implies a strong sense of hospitality and warmth, while "genial" suggests a natural kindness and friendliness. "Gracious" suggests an elegance and charm, while "welcoming" implies an eagerness to greet and include others. "Approachable" implies a lack of intimidation or barriers to interaction.