No no no no. ....
you have to turn up, make it fun ..rub in the other co-workers faces and say stuff like "i'm free, first thing i'll do is take a loooong holiday" then i'll go on the dole and bask in my own juices for a while ..
"nur nur you have to stay here and i'm free" nur nur ..
something like that
what can they do, fire you?
also you may receive a going away gift and its just better to be there until the end, especially if you want a good reference for a next job ...
its like any other day instead your wanting the clock to hurry up and reach 5pm so you can get out ...
trust me ive always stayed until the end and the worst that happened is the managers would complain about finding a replacement because i was so well trained and knew my duties ...so its awkward but easily shrugged off ...
try and think of some funny lines like "pay me double and i'll stay" ..just be light hearted about it all .
my last 30 minutes in the job i last quit was torture, because it was a small business and you just feel so guilty leaving even though i knew i shouldnt feel that way ...
another job it was easy leaving, i shook peoples hands and it was very casual and fun ...
so dont think its always you that makes it awkward, sometimes other people make it more emotional or harder by the comments they direct at you ....