Do you actually laugh

[Q?]

When using laughing smileys or typing lol?

Just thought it would be an interesting topic.
When I use this I don't actually roll on the floor and laugh hysterically but I can laugh very silently or laugh in my head, don't want people to think that I'm a weirdo lol.
I've come across this a couple of times, "my coworkers are probably wondering what I'm laughing at" or something like that.

But there was one time where I was laughing hysterically, I mean really laughing out loud!
That was the favourite Opips2 quote thread, my gf and a friend was wondering what the hell was going on with me.
They just smiled at me, because they knew I was really tired and for some reason that can really cause you to laugh at nothing, anybody else experience that?


lol