Who Am I

This may seem lame. Let’s make it a game. I’ll give you a clue. You try to guess who. Proceeding my entrance by just a short while, Is often the presence or hint of a smile. Used sometimes by women, more often by men, Often, I start as a quaint little grin. I can also be hardy, and sometimes quite loud, And often I’m present amongst a small crowd. If it is me, you want to invoke, Share with the group, a funny joke. If you want to seem happy from now ever after, Invite me in, I’m best known as laughter.