Penny goes into a bar and meets with the old traveller in episode 1x05 "Mendings, Major and Minor".
Josh finds a video of a magical bear attack in a bar and the gang heads there to question the bartender in episode 3x02 "Heroes and Morons".
Chloe and Lucifer enter the bar belonging to the biker gang and talk to the leader in episode 1x06 "Favorite Son".
Patrick is getting ready to leave after waiting for Maddie when she shows up and asks to go back to his place in episode 1x05 "Is a Shark Good or Bad?".
Harris and Grace track down Alonzo and ask for his help investigating Q17 in episode 2x09 "The Manchurian Candidate".