----- I am not an ESL teacher anymore -----
Try to remember other meetings you have attended.
Don't say too much about yourself, just give your name, position and department/university. On the other hand, regarding your supervisor and whoever else you introduce, try to say many things, enhancing the qualities, fields of interest and recent work. Try to previously read a resumee from them
Say something like
"It is a pleasure for me to introduce you professor *** . As it is well know, professor *** has been working on .... for some years, has achieved such and such important results in the field of ... "
This is something that works only when you are there in front of everybody.
The only tip I can give you is to study the resumee of them and try to be as kind as possible.
- For Teachers