But there can be few more adorable examples than this clip of an infant waking up from a deep snooze.
In just 60 seconds, the youngster goes through the whole spectrum of feelings, from confusion, annoyance and anger as he realises he”s no longer asleep to interest and joy when he notices his father behind the camera.
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In the land of nod: Baby Oliver enjoys a deep snooze, but little does he know that his father is ready with video camera for when he wakes up
Coming out of his slumber: Oliver has a big yawn as he stirs from his sleep in this video posted on YouTube
Restless: The youngster gives a frown as he starts to realise he is no longer dreaming
Not impressed at all: Oliver looks particularly distressed as he opens his eyes to the world for the first time
The video was uploaded on YouTube by ForTheOrb who comments that the tot, called Oliver Reese B, has woken up “testing all the emotions he knows” before adding: “Some great facial expressions.”
As of Monday, the video had been viewed nearly 60,000 times since going live a week ago.
There is much debate about just what emotions babies experience and how they differ from the ones adults have developed.
Confusion: As his eyes adjust, Oliver tries to establish what is going on around him
There we go! Oliver smiles as he realises it is his father in front of him. This video has been viewed nearly 60,000 times on YouTube
Quizzical: Something has made Oliver unsure again as he flashes as bemused frown
Happy again! Oliver is back grinning from ear to ear in what has been quite an eventful 60 seconds for the infant
Many researchers think that within three months babies can react to and express five basic feelings: joy, interest, anger, sadness and disgust.
Most believe we are born with these abilities as a survival tool so we bond with our parents.
On the face of it, Oliver certainly won”t have a problem doing that.
VIDEO: Watch Oliver”s emotional wake-up!