Why would a guy get hard if he’s around a girl he likes but nothin sexual goin on or anythin?

Answer 1

It's "Chemical"! Both males and females release hormones of which members of the opposite sex detect. You can't see, smell or taste these but your body does detect them and if it likes them, you'll get hard and she'll get wet. That's all there is to it!

Answer 2

You receive erections because you are a male. You will receive them at random points of the day every day of your life. You may even get one around a male, dog, cat, monkey, or chocolate bar. It does not mean that you want to have sexual encounters with the object; it just happens.

Answer 3

because ur human!