'um' 'er' 'ah' or something else?

Almost everyone will encounter such situations that he/she stucks when making an conversation with somebody else, then what the speaker is to do? Just say 'um', 'er' or 'ah' to continue the talking? It is definitely not at all like that, one report says.

Not everyone says "um", "er" or "ah" when they hesitate while speaking. It depends upon the language.

For example, speakers of Mandarin Chinese often say"zhege" which roughly translates as “this”. In English we say "um", "er", "ah", or other vocalisations for reasons that linguists are not entirely sure about. "Um", "er", and “ah” contain what linguists call "neutral vowel sounds" making them among the easiest sounds to make. Link via World Famous in the Philippines

Tags: conversation, um, er, ah, zhege, linguist, linguitics