Communication Skills...

There are two types of communication skills. One is Verbal communiation and second is written communication. Well for the former, you require clarity in pronounciation, know good vocabulary, no panic while speaking, observing others facial expressions, etc which all will attract your communication/speeach. For the later one, well you should have good grametical skill, clarity in writing point wise, punctuation, using quotes as and when required, etc. As an entertainer / criticiser u should have good listening ability.

A good speller as well. That's important for communication skills. Public speaking skills are very helpful. I don't know why most people are afraid of it, it's really quite fun once you get the hang of it.