Three quarters of Brits will swear loyalty to a company – after being given a free gift.<br /><br />A poll of 2,000 adults found 79 per cent who have picked up some kind of giveaway will tell people about it.<br /><br />With friends (72 per cent), partners (62 per cent) and parents (41 per cent) first on the list to be boasted to.<br /><br />And the 'thrill' of picking up a treat on the house lasts for the whole day, according to 19 per cent.<br /><br />Expert psychologists James Cornish and Greg Tucker have revealed the neurological tricks that make Brits’ eyes light up at the thought of getting something free.<br /><br />The behavioural experts worked with M&S to create a video showing cafe customers reacting with joy after being given a free hot drink – by none other than Matt Willis.
