Final answer:
Your friend is likely experiencing hypoglycemia (low blood sugar), which is common in individuals with type 1 diabetes when they haven't eaten for a while. Symptoms include sweating, shaking, and slurred speech, and can be addressed by consuming quick sugar.
Step-by-step explanation:
Your friend with type 1 diabetes may be experiencing symptoms of hypoglycemia, also known as low blood sugar. This condition can occur if they haven't eaten for a while, which can be caused by a delay in mealtime like waiting for a delayed order at a restaurant. Symptoms include sweating, shaking hands, and slurred speech, reflecting that the brain and body are not getting enough glucose to function properly. To help, you can offer your friend some form of quick sugar like juice or candy and seek medical attention if necessary.