Courtship consists in a number of quiet attentions, not so pointed as to alarm, nor so vague as not to be understood.
When I have an idea, it goes from vague, cloudy notion to 100,000 words in a heartbeat.
For parlor use, the vague generality is a life saver.
Leia follows me like a vague smell.
Recipes can be incredibly vague where chillies are concerned.
You have to have an idea of what you are going to do, but it should be a vague idea.