Am I joking or am I serious

It's kind of easy for some to know whether I am joking or serious.
Yet for most, they never know when I'm serious.....
When I say I want to get married soon, am I joking?
When I say I like hello kitty, am I joking?
When I say I am a serious guy, am I joking?
When I say I have an email account called blahblahblah@hellokitty.com, am I joking?
When I say I am girly, am I joking?
When I say I you're beauttiful, am I joking?
When I say someone is beautiful, am I joking?