Carls Sims and The Sims Community are good sites if you have questions about pack details. I’m not sure if they cover things like thought bubbles though.
But the action your sim is doing most likely means something is blocking their way to where you are trying to send them. I think sims have to have half a square block to get around anything, ( like to get around a bed ). it used to be a full block, you need 2 or 3 blocks open in front of the refrigerator to use it, I believe 1 or 2 blocks in front for the stove/oven. You need a block or two in front of an indoor trash can. You have to make sure you have the right chairs for tables and desks, game tables, etc., that they click into spots. Sometimes it looks like a chair might click into a spot, but it doesn’t. Maybe it’s a living room chair instead of a kitchen or desk chair, even though it looks like it should fit.
Some objects need to go in specific spots, like a sink on a certain type of counter to use it. There needs to be a certain amount of space between a sofa and a coffee table, for someone to walk by or be able to sit down. If you are putting objects ( that are useable ) on a surface, you need to know that it is made for that surface to use it. Like a coffee maker probably won’t be useable placed on an end table, or coffee table. If you put and object in front of or on a counter, they probably won’t be able to use that counter. To make food, they need an open counter, they won’t use a table for that.
