A six-month-old baby

• Appears to understand tones of warning, anger and friendliness in voices
• Is very interested in looking at what people are doing
• Seems to recognise names of family members
• Recognises own name
• Takes part in back and forth vocalisation games with adults
• Produces some consonants, for example, b, p, t, d and a range of vowels in early babble
• Looks at what an adult is looking at
• Participates in turn-taking games like Pat-a-cake
• Explores objects by looking and touching.