My doxi-rat terrier makes a chirping sound when she wants attention. How does she do this.....?

The chirping sound your doxi-rat terrier makes is likely a form of vocal communication, similar to how some dogs bark or whine. This sound can be an instinctual way to express excitement or to get your attention, often signaling that she wants to play, be petted, or engage with you. Small dogs like terriers often use higher-pitched sounds because they are more effective in capturing human attention. Pay attention to her body language as well; it can give you additional clues about what she wants!