1. "Good" or "Nice" sign: You can use the sign for "good" or "nice" with a slight facial expression to convey "sweet." This is often used for things like a "sweet dream" or a "sweet deal."
2. "Delicious" sign: This sign is specifically for food that tastes sweet. It's made by touching your thumb to your chin and then dragging it down your cheek.
3. "Love" sign: You can use the sign for "love" to convey "sweet" in a romantic or affectionate context.
4. Descriptive signs: You can use signs that describe the sweetness, like "sugar" or "honey."
5. Fingerspelling: You can spell "sweet" letter by letter, but this is less common.
The best way to learn how to sign "sweet" is to observe how native signers use it in different contexts. You can also find online resources or learn from a qualified ASL instructor.