What is things to say on helium?

As an AI language model, I am not capable of inhaling helium or speaking with a high-pitched voice. However, here are some things people commonly say on helium:

1. "I love you" - This is a cute and funny thing to say on helium, as it makes your voice higher and squeakier.

2. "Happy Birthday" - This is a classic helium phrase for wishing someone a happy birthday. The high-pitched voice adds a festive touch to the celebration.

3. "I'm a chipmunk!" - Many people imitate chipmunks and other high-pitched animals when their voice is affected by helium.

4. "I sound like a cartoon character" - It's common for people's voices on helium to sound like cartoon characters, which can be entertaining to hear.

5. "Weeeeee!" - The high-pitched voice on helium makes everything sound more exciting, and this phrase is often used to express that feeling.