How to do the inhaled "Ps" sound

PDF Download of the Three Beats here: store.kagi.com/...
Lots of folks have been checking out my Three Beats for Beatbox Flute and many have asked for a video explaining how to make the inhaled "Ps" sound. This is my inhaled snare sound, and it is done with the lips. Hope this explanation helps!
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[@MrFunxy]

Modernising jazz flute. You are one of a kind Greg.

[@MichelleCzarneckiakaBoogawes]

You are awesomely talented. That is all. God Bless!

[@Crisheight]

Sweet :) hope to buy the piece soon

[@TheAwkwardCows]

You make flute players cool!

[@sabaradrawer]

ITS WORKKKKKsss !! thanks!!

[@vibz123rulez]

Your voice is fucking amazing.

[@ReesaOryon]

You are really amazing. I watch your stuff an am astounded. :) I wish I could play half as well as you. XD

[@aNiRbAs999]

there you go, I hope that helped! no it didn't... I didn't catch a single thing OTL but you're amazing~

[@freedomworksfilms]

@justayyy you can find the link to download the music in the info section of the vid ;-)

[@nasiri78]

youre awesome

[@sk8t3rforever]

Hee goes hard to the paint

[@sojustinesays]

Where/when is Three Beats available for purchase for those of us who didn't go to NFA this year?

[@FireFistMan2772]

Thank you very much! ^_^

[@Qujntus]

@freedomworksfilms hey man Im learning flute do you have any pointers for the flute in general? thanks

[@EdGringo78]

You are so freakin awesome!! :)

[@RaCh3L521]

You're so awesome. (:

[@5o4B0i]

does anyone else notice the creepy way his neck cringes when he beatboxes into the flute? haha

[@saintdurian]

I really want to get the Three Beats for Beatbox Flute but my parents are not letting me. ):

[@FrondomeCast]

@astickywhale You know comments like that cause dislikes right?

[@LauraMocean]

i couldn't do none of the things you said..it kind of hurts my lungs...but i'll keep practicing:)

[@hiimlin]

@astickywhale that one person

[@TheBeatboxHitmanTwo]

ps ps ps :3

[@MrFunxy]

@Rocklobsterport Dat moustache lol

[@Rainin90utside]

I was eating cereal and I tried to do this and I damn near choked.

[@saxonde68]

The mustache makes the sounds... Not the other way around.

[@LauraMocean]

@SmoothHourglass lol

[@DaisyMcfries]

[@YnJgurls]

I SO want to play it but I don't play flute! xD

[@MrGuy081]

cant do it 0.o

[@Residew]

@LAHrebirth Or he could just have red cheeks from heat or maybe a sunburn, your comment was stupid.

[@TheNeCafe]

"um p-s" who got the reference

[@PeppieStyle]

Astickywhale Get hat murder weapon ready cuz some one disliked it

[@Sasbatabata]

@astickywhale quick, where's ur chainsaw?! i'll grab my favorite killing knife and we can kill the hater!

[@MelkanVath]

if anyone dislikes this i will kill them

[@MasterSK92]

your moustaches got bigger!