So, baby has had his very first soother time tonight (4.5 weeks old). I tried it a couple times this week but he spat it out, but tonight he was fussy and when we tried it he LOVED it.

But now I wonder:

How will I know when he's hungry vs when he wants a soother?

Should I let him take the soother all the time, or just reserve it for special occasions of fussiness?

What else do I need to consider?