All he has to do is make a phone call where each sentence starts with the next letter of the alphabet. Simple?
Chris Pratt from Guardians of the Galaxy Vol. 2 takes on AlphabetiCall on The Matt Edmondson Show on BBC Radio 1.
Search BBC iPlayer Movies & Megastars for more videos like this http://www.bbc.co.uk/tv/radio1
Facebook: http://bit.ly/BBCR1facebook
Twitter: http://bit.ly/BBCR1twitter
Instagram: http://bit.ly/BBCR1instagram
Vine: http://bit.ly/BBCR1vine
Website: http://bit.ly/BBCR1website