The Sweetness that is Scarlett

Today, Scarlett was sitting on the couch playing some game app on Wes's iPhone and Wes was sitting next to her holding Desmond.  I was laying on the love seat reading a blog on my phone and occasionally looking over at my family.  Wes decided it would be funny to horizontally stick Desmond's head between Scarlett's head and her phone blocking her vision of what she was doing.  You know, the kind of thing that would drive you mad if it was you.  Desmond looked up at his sister, beaming.  For a second Scarlett tilted her head to look around him at the phone and then she moved the phone up above Desmond's head so she could see it better.  Wes assumed she was not going to give him the reaction he wanted of squawking or whatever at him, so he started to bring Desmond back onto his lap.  However, what Scarlett was doing was moving the phone to turn it off and then she set it down on the couch next to her and turned to Desmond with such excitement and love.  She made a little high pitched noise to him that always gets him laughing and started playing peek a boo with him.  She just put her phone/game away and played with him.  She was happy to do it and was immediately just in the moment with her little brother.  Why is it so hard for me to do something that a 2.5 year old can do so gracefully?