When asked to rate the attractiveness of a skilled and intelligent person
Participants rated them as mire attractive when the people committed a small blunder during the interview
We find it endearing when people who we admire make mistakes
See the full study here :
Aronson, E., Willerman, B., & Floyd, J. (1966). The effect of a pratfall on increasing interpersonal attractiveness. Psychonomic Science, 4(6), 227–228. https://doi.org/10.3758/BF03342263