You can do it alone, in private, with media, or with imagination.
Doing it in public places is also fine. People will envy you and want to join in.
You can do it with a dog, if you have a dog. Or with a borrowed dog, or one just passing.
It's perfectly acceptable to do it at the dining room table.
You can do it with your spouse, someone of the same gender, or several people at once.
It's all right to do with someone else's spouse, too.
There are some who are paid to do it with large groups of people.
It can be done several times in the space of a minute, for hours on end.
You can do it with your grandmother, your father, your sister, even your cousins. All of them. All at once.
Done with strangers whom you expect to never see again, there is a dimension of extra surprise.
When it's done with children, there is much joy and no censure.
If you can manage to do it with an enemy, everything changes. Everything.
It brings joy to you and everyone in earshot. It feeds upon itself and grows bigger and brighter as long as it continues.
Do it many times a day, share it often. Do it until tears run down your face, catch your breath, wipe your eyes, and begin again. Do it until your whole body aches with it and your face feels as though it will split. Do it to the point of delicious exhaustion, and lean weakly against the friend or stranger close to you. Do it everywhere, with everyone, let your voice ring with it in every moment.
Laughter. It is better than sex.