Formal:
* מַנְטֶלעך (mantlekh): This is the most common and neutral way to say "little man". It literally means "little one" but is often used to address a young boy.
* קִינָדעל (kinndel): This is another common and neutral term for "little man", often used to refer to a child in a playful or affectionate way.
Informal:
* פִּיפּל (pippel): This is a diminutive term, similar to "little guy", often used in a playful or endearing way.
* בּוּבָּה (buba): This is a more affectionate term, often used by parents or grandparents.
Other:
* קְלוּבּ (klob): This is a more informal and sometimes derogatory term, similar to "shrimp".
It's important to be aware of the context and tone when using any of these terms, as some can be considered more familiar or even offensive depending on the relationship between the speaker and the person being addressed.