gregarious (adj.)

• affable
• amiable
• candid
• chatty
• civil
• clubbable
• clubbish
• clubby
• communicative
• companionable
• companionate
• compatible
• congenial
• conversational
• courteous
• effusive
• expansive
• flip
• fluent
• frank
• friendly
• gabby
• garrulous
• gassy
• genial
• glib
• gossipy
• gushy
• hospitable
• long-winded
• loquacious
• newsy
• prolix
• smooth
• sociable
• social
• talkative
• talky
• urbane
• verbose
• voluble
• windy