Deaf people have varying degrees of hearing loss, ranging from mild to profound. Some deaf people can still hear certain sounds, such as planes or dogs barking, but hearing a sound does not mean that they can understand speech. When deaf people imagine a hearing person speaking, they imagine them signing instead of speaking because they can understand them that way. If they want to think of a word that doesn’t have a sign, they finger-spell it. Deaf people can feel the beat of music and enjoy physical vibrations, which can be felt through music. They may also use assistive listening devices, such as hearing aids or cochlear implants, to boost available hearing, or they may rely on lip-reading, sign language, sign language interpreters, and/or captioning. Deaf people may also rely more on their other senses, such as touch and sight, to perceive the world around them.