Constant whining

How do you guys deal with constant whining from your toddler? It almost seems she’s whining out of habit now, like not anything in particular. She’s just making whining noises a lot

I am understanding when she’s unhappy about something in particular but as I said it seems like a lot of the whining is just a habit. Do I tell her to stop in these situations?

If it makes any dif, she isn’t talking yet but she definitely understands everything. And I can tell she’s not whining for my attention or anything, like right now she’s reading her books and seems happy but is making whining noises randomly

I don’t think a minute has gone by where she hasn’t whined tonight lol