How to avoid impulsive consumption when shopping with a group tour?

How to avoid impulsive consumption when traveling to shopping stores? You hesitate when you buy, but you just don't buy.

You can search the prices of the items you bought online, and then decide whether you need them.

Avoid impulsive consumption, and you can also give yourself some reasons for not buying enough, so that you won't be impulsive.

You can also ask others if they have to buy it. Impulse consumption also includes group consumption. If they don't buy it, don't buy it yourself.

It is not because of impulsive consumption, but psychologically called no money.