Cat only wants attention when I’m standing up

For as long as I’ve known my cat (3 years,) she will ONLY receive attention if I’m standing up. She has no interest in me when I am sitting down. She also gets so desperate to be held that she trips me up when I’m walking and walks around me meowing. (yes I do hold her everyday but there’s only so long I’d like to stand in one place and hold my cat) Would anyone else be annoyed by this? What can I do to show her it’s ok to receive attention sitting down too?