someone who makes everyone enjoy things more.

She was the one who was always smiling in pictures, the one who was the life of the party.

• a spark plug
• a spin doctor
• as pissed as a fart
• as plain as day
• a sporting chance
• a square meal
• a square peg
• a square peg in a round hole
• as quick as a flash
• as quick as a wink
• as regards
• as regards something
• as right as rain
• as sharp as a tack
• as sick as a dog
• ass is on the line
• ass-kisser
• ass off
• as something as they come
• as soon as
• as soon as possible
• as soon as something
• ass over teacup
• ass over teakettle
• as straight as a die