The problem with lol is I end up saying "lol" in my head when I find something funny. Then I have to mutilate myself as a punishment for being so crap!
When I first
came went back to England from my 10 year stint in Japan I initially found it hard to speak English on the phone, and had a habit of gioing up to people and saying 'Genki des', which basically means 'Happy?'. It's a kind of informal greeting for friends more than anything else. If I was happy I was more likely to say something to do with 'Genki' than the English word happy, and not even realise it until people looked at me in a strange way....
I fully expect to burst into chuckles one day in public and go "lol lol lol" and promptly get thrown in an ambulance, and packed off to a loony farm!