Interactive
Part of speech: adjective
Definition: Acting with each other. Responding to the user.
Example sentence: Instagram is my favorite! It's interactive and a fun way to stay connected to my friends, family and fans. I love posting photos from family trips, property visits, previews of my collections, everything!
Synergistic
Part of speech: adjective
Definition: Of or pertaining to synergy or synergism; co-operative, working together, interacting, mutually stimulating.