"I'm fond of" is correct. I'm keen on ... I'm interested in ... I'm crazy about ...

Thank you,very much!

fond + of! All of you guys who got it right win! Finsaria needs to contact me about that because found does not go with "on", and Padraig needs a merry Christmas which I wish for him and everybody else. The words in question are among the small common words which are in the book "keys to words" which can be located at: http://www.keys2words.info/ It only costs an arm; you get to keep the leg. My Skype: brian.madden4

yup what they said :)

'i fond of' or 'i fond on' are correct. i think 'of' only use to object, but if 'on' use to object and people.