I'm an infj, and I'm wondering if it's common for Infjs to have a playful sense of humor. I do, and I think it's because of Fe, wanting to make sure people are having fun and comfortable in a conversation, though most of the time I think my jokes are cheesy... But I'm wondering if this is true for most Infjs. Thanks!
While a sense of humor is very individual to each person, mbti types do play a role in how jokes are given and received. Infjs use a strong Fe filter in the general public, if they decide to make a joke at all. Usually an infj will use fe to laugh and show pleasure at others’ jokes in public. They are more likely to make jokes with Ni and decide whether to share them with Fe to close friends and family. I think the playful sense of humor does include Fe when it recognizes the infj is very close to the person they are around and comfortable enough to show a more hidden self. In general though, infjs are known to appreciate puns and cheesy humor, even if some of us are reluctant to acknowledge it.
Rant: my infj sister says sometimes she needs to use Ti in her humor to get her intj friend to appreciate her joke, so ya. you can use your other functions as well, it just takes more effort.
Sorry I answered more than your question, but I wanted to get a good explanation on infj humor out there. Thanks for the ask!