It's important to approach a situation like this with care and empathy. When you're concerned about a friend's mental health, especially if you believe they may be considering suicide, the actions you take can make a significant difference.
In this context, it's vital to avoid minimizing their feelings or experiences. Telling them that they are "embarrassing you" or implying that their feelings are not valid are critical missteps. Instead, you should focus on expressing your concern, offering support, and encouraging them to talk about their feelings without judgment.
If you have to select an action to avoid, it would be something like dismissing their feelings or expressing that you find their behavior embarrassing, as this could further alienate them and prevent them from seeking help. Always prioritize compassion and understanding.