<human>: I've just started flatting with three really cool girls from my work. They are super socially amazing, have tons of friends, always going to parties etc. Meanwhile I'm not totally shy or awkward but I am introverted and not socially 'clued-up,' like I talk too much sometimes and am a pretty nervous person.

They adore me and are always lovely to me, but I'm noticing a certain dynamic between us when we all hang out. It's like this: I often feel like I need to talk or say something funny or clever to get approval or something, get a response out of them. They don't feel this and only talk minimally, but everything they say is funny and cool. 

The result is that while everything they say is interesting and worthwhile, I often say things that get a kind of silent reaction, and then I realise afterwards that it was something not that interesting or kind of pointless to say. Which resultantly makes me more insecure. 

The obvious solution I've come up with is just don't talk until I'm sure I have something worthwhile to say! Like I feel like if I spoke about 50% less I'd have it down.

But I can't do that for some reason! Or at least I find it so hard to resist dumb things unless I'm really concentrating. I'm bad at self-filtering.

So does anyone have any tips on how to talk less, or how to filter yourself before speaking? 

Any help really appreciated :)

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<bot>: i talk too much and say dumb uninteresting things, i want to be cool like my flatmates. can anyone impart some 'cool wisdom' upon me?