1. "Child" + "Male": You can sign "child" (using the sign for "baby" with a slight movement of the hand back and forth) followed by the sign for "male" (index finger pointing outward, thumb touching the chin, and a slight head tilt).
2. "My Son": You can sign "my" (touching your chest with your index finger) followed by "son" (using the sign for "child" with a slight movement of the hand back and forth) or "boy" (index finger pointing outward, thumb touching the chin, and a slight head tilt).
3. Using "Son" as a Name: If you are referring to a son by his name, you would simply sign his name.
4. Context: The sign for "son" can also be understood based on the context of the conversation. For example, if you are talking about your family and you want to refer to your son, you might simply use the sign for "child" and your facial expressions and body language will make it clear who you are talking about.
It's important to note that sign language is a visual language and relies heavily on facial expressions, body language, and the context of the conversation. If you are learning ASL, it's crucial to learn from a qualified instructor who can teach you the nuances of the language and help you understand how signs are used in different contexts.