how to word this?

[Joe]

Dear Teachers, We may see people who frequently use certain words or phrases while speaking, say, "basically" or "when I was young", etc. In my mother tongue, we call them "words on the lip". Are there any word or phrase for that in English? e.g. John uses "I think" a lot. I want to say "'I think' is John's ". What can we use in ? Thanks very much.

[Francois]

Take a look here.

FRC