LOQUACIOUS

extremely talkative

full of trivial conversation
SYN - chatty, gabby, garrulous, talkative

"He really had a hard time getting away from the loquacious girl he had mistakenly started talking to."

"It normally was embarrassing to have his loquacious mother around when they were around such silent serious types as this, but the awkward silence that hung over their heads now made him wish that that she was around."

"He wanted to show that he was fun and interesting without coming off as too loquacious."