paying it forward

"...travelling and different time zones gets a toll out of me. I'm happy to be back again and 
armed with new initiatives at work.While on the plane,I ordered a cheese platter and 
to my surprise it was paid already by the person next to me..
I thanked and said my appreciation...hmmnn...talking about true giving...
now I'm thinking of paying it forward to another stranger when I go to starbucks..."