Is there anyway to tell that girl is excited by watching her?

Answer 1

If she wiggles her lower body a lot....maybe constantly crossing and re-crossing her legs...or rubbing them together slightly.

Answer 2

Some signs that a girl may be excited include increased heart rate, dilated pupils, faster speech, fidgeting, blushing, and smiling. Pay attention to her body language and facial expressions for cues of excitement. However, keep in mind that everyone expresses excitement differently, so it's important to consider the context and her usual behavior for a more accurate assessment.