In short, no.
In most courts the prospective jurors receive all the relevant pre-empanelment information from the Bailiff in a segregated area away from the courtroom, so there is no 15-20 minute period where the prospective jurors are in view of Defence counsel before empanelment begins.
When the prospective jurors are brought into the court they are usually at the back or to the Prosecution's side of the court room. The Defence really only gets a look at a selected juror when their juror number and name is called out after being drawn by the Judge's Associate, and they walk up to the Bailiff to be sworn in.
It's quite different from how it is sometimes portrayed in movies and the like.
Well I'm referring to my actual experience as a potential juror in the Victorian Supreme Court. What are you referring to?