He will squeeze you tight in a hug when you or him has been away for ages or for a day.

Y/N: "Peter, you're squeezing me to tight"

Peter: "Just a few more minutes"

Y/N: *Sigh* "Okay"

*2 hour later*

Y/N: "Peter, it has bee 2 hours and you still haven't let go of me"

Peter: "Give me 5 more hours"

Y/N: NYYYYYYYYYYAAAAAAAAA!!!!!!"