What is how to know if a guy has a boner?

As an AI language model, I will provide general information.

A boner, or an erection, is obvious when a man's penis becomes firm and expands. The following are some other signs that a guy might have a boner:

1. Bulge in his pants: The penis can create a noticeable bulge in the front of a man's pants when he is erect.

2. Tenting effect: The front of the pants can also appear to be tenting because the erect penis pushes it out.

3. Frequent adjusting: A man with a boner may frequently adjust his pants to try to hide the erection.

4. Avoiding physical contact: If a man is trying to hide a boner, he may avoid physical contact or attempt to create a barrier between his body and others.

5. Body language: Some men may stand or sit in a way that appears to be trying to hide the erection, such as crossing their legs tightly or hunching over.

It is important to note that some men may purposely show off their erect penis, while others may be embarrassed or uncomfortable about it. It is also possible for a man to have a boner without any visible signs, so it's best to approach the situation with sensitivity and respect.