1. gregariously, sociably - in a gregarious manner
   Derived from adjective sociable₁
   
2. sociably - in a sociable manner; "sociably, the new neighbors invited everyone on the block for coffee"
   Antonyms: unsociably
   Derived from adjective sociable₁
   

sociably (adverb)

• Definition: In a friendly and affable manner; with a pleasant and sociable disposition.
• Example sentence: She greeted all the guests sociably and made everyone feel welcome.

sociably (adjective)

• Definition: Having the ability to interact and get along well with others; inclined to form pleasant social connections.
• Example sentence: Jake is a sociably person who enjoys engaging in conversation with people from diverse backgrounds.

sociably (noun)

• Definition: The state or characteristic of being friendly, outgoing, and socially adept.
• Example sentence: Her sociability made her the life of the party as she effortlessly mingled with everyone.