I’m watching a hallmark movie. Not the best in the world but cute and heartwarming. “Rip in time”. Rip van winkle just appeared on this lady’s farm. He’s trying to convince them he was born in 1800s and their house was where he grew up. Anyways he’s telling the lady the fun things they did as kids. He then got a blade of grass and put it between his thumbs, to make a whistle noise. She was so amused. She had no idea about that. I did that a lot as a kid. Also squeeze the pringles type cans to shoot the lid or blow into the box like junior mints to make a whistle noise. Hey I grew up poor. We had to entertain ourselves. Anyone else do these things?