Put on a snappy face

It was just Andy and me for lunch.  

After we'd eaten, we enjoyed a bit of Snapchat face-swap tomfoolery; it's good of him to help me understand what my phone can do. 

As I took him round to meet his mates at the 3G, he said "Dad, when I'm at school sometimes I use big words in English that I don't really understand - just so I can photosynthesis." 

Thank you, he'll be here all week.