If you mean something is humorous:
* "Ha ha" sign: This is a simple sign with a slight shaking motion of the hand, usually done with a smile.
* "Funny" sign: This sign involves making a "C" shape with your dominant hand and bringing it to your cheek, then moving it in a circular motion.
* "Laugh" sign: This sign uses a hand shape like you're holding a cup and bringing it to your mouth.
If you mean something is strange or unusual:
* "Weird" sign: This sign involves making a "W" shape with your hand and moving it back and forth.
* "Strange" sign: This sign involves making a "C" shape with your hand and moving it across your forehead.
If you mean something is amusing:
* "Amusing" sign: This sign involves making a "C" shape with your hand and bringing it to your cheek, then moving it outward in a circular motion.
Other tips:
* Context is key: Use your facial expressions and body language to help clarify the meaning.
* The sign for "funny" can vary depending on the region and dialect of ASL.
It's always best to learn ASL from a qualified instructor to ensure you are using the correct signs and understanding the nuances of the language.