What is this abstract word? Th! Nk for iPhone?

Please help me find out this abstract word on the pic. When I type in "happiness", I get "yes, he is happy, but what is he doing? We're interested in the abstract concept here." None of its synonyms seem to work.
Thanks

Added (1). Nope Some Guy, it isn't chilling either:/

Added (2). OMG I can't believe it was so simple, it was LAUGHTER, thanks Neam! And because of the happiness hint here I was trying to go all bliss, joy, contentment, relishing, fun, chilling, coolness, satisfaction and whatnot…

Chilling?

Looks to be laughing or laughter?