bobbing

How can i get my sun conures to bob? i’ve tried listening to music and doing it but it’s not quite working

I noticed that my lovebird Bootsie seems to be tail bobbing and sneezing (not a lot and with no mucus). She seems to be acting normal otherwise... She’s eating,playing,singing and bobbing her head. I’m so worried but my dad says she’s fine ( he’s worked with show pigeons before) I couldn’t...