Curie currently sleeps on the rug at the foot of my bed (because sleeping on my bed is too hot, apparently). But if I get up to go to the bathroom during the night, she will squeak at me just as her way of getting me to acknowledge her.
Corona likes to swat at my pant legs as I am getting dressed. He will also nibble my fingers and toes to try to get me out of bed in the morning. When he gets comfy before napping, he will inhale and let out this very satisfied squeaky/groany sound.
Both my cats also love it when people come to visit. They are seriously sociable. They hear the front door open and they are right there to see who it is. They also enjoy rubbing up on people's purses/bags/shoes when they come over.