my female ringneck acts really weird when i make a kissing noise

by joshua
(casino)

My female indian ringneck when i make kissing noises opens its beak and makes a soft wierd liitle sound, its eyes dilate , it spreads it wings about an inch and it lundges at its perch but not aggressively, and spreads its tail feathers, it does all of that at the same time, but remains fluffy the entire time, it doesnt alarm me but i would be very grateful if someone could help me understand why its doing this , thank you.