i'm new to slack, how do i refer to a specific user in a reply ? i see the usage of @, ooooh that does bring up a selection list, is that the waya of the jedi ?

Yup @Harl... will suggest you and when I accept that choice it will highlight (and likely notify you about my message)

As in @codeperfect

@seancorfield oh yes, the more i use slack the more i like it