how to singWatch
You basically... do it. Geez this is harder to explain than I thought. I think the best way to explain it is with your diaphragm.
You know when you laugh, your diaphragm wobbles. So you expel a lot of air and then not very much and then a lot very quickly (high frequency).
As practice, try taking a breath, and then going "hehehehehehehehehehehe" soundlessly, breathing out all the time. Then put it to a note. Play a note on a piano/guitar and match it with your "hehehehehehehehehe".
I've never had to describe this to anyone, as you can probably tell!
I hope that helped.
It would be possible to suck it in, but this isn't the best way of getting air into your lungs which is why it's uncomfertable to do i suppose. I'm no expert by any means but it's an idea.
lol don't blame you, i just want my voice to tremble a bit rather than being plain, do u have to born wiv the skill
sing a "slide"/glissando up and down, like E('mi') down to C('Do'), and C back up to E, get faster, and reduce the number of notes you're sliding between, so you're, say, alternating between a D and an E ('ray' and 'mi')
that'll get you a sort of trill, in effect.
another is to stand relaxed, and immitate good old pavarotti, and try and stand up right, and let sound come out of your belly, and sing LOUD.
and a final is to sing a note, while moving your diaphramn like you would if you were laughing (you know, when youre hurting from laughing too much?)
those are the only things i can think of right now that might help.
but if you're aiming for a Lee off Blue effect, you might as well have your balls clamped and sing falsetto, (presuming he's the one in blue that sounds girly, cos i know there is one in there somewhere that sounds girly)
another thing to make you laugh: H from Steps is in a musical. i think its Chitty Chitty Bang Bang. i can't remember now, i was in too much laughter.