What does pulling on index finger mean in sign language?

Pulling on the index finger in sign language doesn't have a single, universal meaning. It's important to understand that sign language is visual and uses the whole body, not just individual signs.

Here are some possible interpretations depending on the context and other signs used:

* "I" or "Me": This is a common sign for the first person singular pronoun. However, it is usually accompanied by a specific handshape and movement, not just pulling on the index finger.

* "Come here": In some sign languages, pulling on the index finger towards oneself can mean "come here".

* "Attention": Pulling on the index finger can be used to get someone's attention, similar to waving.

Important considerations:

* Sign language is very visual. The specific handshape, movement, and facial expressions all contribute to the meaning.

* Sign language varies between countries and regions. What means one thing in American Sign Language (ASL) might have a different meaning in British Sign Language (BSL) or other sign languages.

To get a definitive answer, you need more context. If you have seen this sign in a specific video or situation, please provide more details.