What to tease the guy verbally?

[pearlsnini]

i like some guy, we are not dating, we have common friends. we are seeing each other twice a week, sometimes we all go to the restaurant or in friends home. he organizes this, not me or any of our friends. I think he likes me too and wants to know what kind of person I am. but I have BIG PROBLEM , WHEN HE TRIES TO COME CLOSE TO ME AND SAY SOMETHING I AM GETTING NERVOUS,I FEEL MYSELF SELF-CONSCIOUS AND I CAN T SAY ANYTHING I BECOME DUMB, I ALWAYS END CONVERSATION AS SOON AS POSSIBLE AND GO.

actually I have good sense of humor but when I m talking to him I can t joke I REALLY WOULD LIKE TO TEASE HIM VERBALLY (HE IS ABSOLUTELY HILARIOUS PERSON AND LIKES JOKING ) BUT I CAN T.

[alps-era]

maybe you seem very cute and endearing when dumb ,and that's why he keeps doing that .