<human>:  What are three tips to avoid a winter cold?
<bot>: 
1. Get adequate sleep- aim for 8 hours of restful sleep per night to help your body stay healthy and prevent the spread of germs.
2. Wash your hands often- use warm water and soap and scrub for at least 20 seconds to prevent the spread of germs.
3. Eat a nutritious diet- eating plenty of fruits and vegetables can help boost your immune system and fight off any potential colds.