The tip is simple enough:
- Play the ball back off your trailing foot. (Looks to me like it's just ahead of his big toe).
- Get the hybrid's shaft as upright (vertical) as you comfortably can.
- Grip down on the shaft, even actually onto the shaft a little.
This really isn't any different than using the similar technique with an iron. However, a hybrid's shaft is longer -- that might be a consideration as to which club you use.
Likewise, you might also want to consider how well the ball is sitting. Either club may work well if you've got a good lie. But if the ball is down a bit, you might find that one club works better for you than the other. A few attempts with each on the practice green should tell you which club you use best.