At the beginning of every turn, lift the new inside ski and place the tip of the lifted ski on top of the tip of the outside ski, which stays on snow. This will put the lifted ski at a slight angle to the other one and you take the entire turn on the outside ski exclusively.
The lifted ski will stay at a slight angle to the other ski throughout the turn.
Variations - you should use them all:
See the videos:
Another variation is to keep the lifted ski at a big angle across the outside ski (i.e. overlap the toes) or just with the tips overlapping - we prefer the one with only the tips overlapping.
It is best to video and then review your video. Focus on the balance: can you balance on the outside ski? Do you have any wobbles? Do you have to use your poles for support? If so, redo the One foot balance workout.
The Phantom Javelin, which combines a Javelin turn with tipping of the lifted inside leg is a great progression from the simple Javelin.