He/she is the one whose job it is to have the final vision of your video. Since you already put your trust in him work with him/her to bring that vision to reality. Don’t flirt around with the extras or even worse make out/have sex when you are supposed to be shooting; it may look cool in movies but you will probably not like the results if you do this on your set. Give him/her your best. After all it is you career that is at stake! Don’t forget: A lot of things will be paid for by the hour so the more time you waste…Enough said. There is another very sensitive area which very often brings problems on set. The artist/band often feels that since it is their video they should have a go at directing. The director, quite rightfully, is often uncomfortable with this, to say the least.
Partly for the same reason your roadie shouldn’t have a go at your solo during the climax of the show just because he feels like it, even if he is a very skilled guitar player. Imagine how you would feel if you had four different people pulling your arms in different directions when you doing 100km/hour. This may be quite an exaggeration but, the point is, you will probably lose control of the situation, with disastrous effects. The solution? First of all, if you want to co-direct make sure it is agreed before the shoot. It is also best for only one member of the band to take on this role.