What is a guy doing when sitting down and making weird clearing his throat noises every one in while?

There are several reasons why a guy might be sitting down and making weird clearing his throat noises every once in a while. Some of the possible reasons include:

- He has a sore throat or other throat irritation and is trying to clear his throat to relieve the discomfort.

- He is trying to get someone's attention or make himself heard in a noisy environment.

- He is nervous or anxious and is using the throat-clearing as a way to calm himself down.

- He has a habit of clearing his throat and does it without even thinking about it.

- He is mimicking someone else who clears their throat frequently.

- He has a medical condition that is causing him to clear his throat frequently, such as allergies, asthma, or a sinus infection.

If you are concerned about the guy's throat-clearing, you can ask him if he is okay or if he needs any help. If he is clearing his throat frequently due to a medical condition, he should see a doctor for evaluation and treatment.