Does it mean a girl likes you when she pulls your shirt?

Answer 1

In most cases yes.

Now, how MUCH she likes you can be tricky.

Some girls flirt around just to be a tease, and don't actually care.

She might be trying to get you to strip.

She might just be checking out your chest (in most cases, a flirting way).

She might see a stain and want to clean it!

The best way to find out is to ask her.

Answer 2

Not necessarily. Pulling on someone's shirt could be a playful or friendly gesture, but it doesn't automatically indicate romantic interest. It's important to consider the overall context of the interaction and any other signals she may be giving off.