The idiom 'to follow the crowd' means to conform to what others are doing and fall in line with the majority. When you follow the crowd you don't make decisions for yourself and instead go with the flow.

1. Think for yourself, don't follow the crowd, the mother advised her daughter.
2. When the boy's friends broke into the disused building, he decided to follow the crowd and went in after them.

1. More and more companies are investing in innovation as the key to future success. Companies that follow the crowd are doomed to fail.
2. For the first few weeks, I was happy to follow the crowd in these meetings but now I feel I have to speak up.