Human: How can I tell if a banana is ripe? Assistant: 
To tell if a banana is ripe, look at the color of the skin. A ripe banana should have yellow-green skin with some brown spots or freckles. If it's too green, it may not be ripe yet. You can also give it a gentle squeeze to see if it yields slightly to your touch. Additionally, you can smell the banana for a sweet aroma that indicates ripeness.