I love taking the opportunity to attend conventions and festivals of all kinds (comic and anime conventions, exhibitions, special museum exhibits, etc.)
My MBTI personality type test (got an official one done during my BEd) is INFP (sometimes called The Healer, The Dreamer, etc.)
I feel the Itype if fairly accurate for me, and I identify with it quite a bit.
Movies: Star Trek, Dark Crystal, The Muppets
Current TV: The Flash, Doctor Who, Assassination Classroom, Steven Universe
Music: They Might Be Giants, One OK Rock, Theme Songs
Food: Japanese, Indian, Fish and Chips, Strawberries, Mango
A common interest would be great for initial conversations; but I'm happy sharing my interests, and learning about a potential date's interests that we don't share.
I also love taking people on personal tours of aquariums and zoos!