Using て form at the end of sentences


I know that て can be used before いる, as well as when asking for ください, but I
just realized I don't really know what it means. For instance, I just read an
instance of て being used at the end of a sentence:"知り合いもいるからちょっと待ってて!" What
exactly does the て form mean in this context? I know it's short for いて, but
even so, I've never ended a sentence with a て form verb.




In general, a standalone TE-form of a verb can be a request. You can
essentially think of it as 〜ください being assumed.

In this specific case, it is 待っている that is being conjugated into TE-form, with
the い getting omitted since it is casual speech:

> 知り合いもいるからちょっと待ってて  
>  ＝知り合いもいるからちょっと待っていてください

