New college grad with multiple job offers

Should I be attempting to negotiate my starting salary using other offers I have? I don't know if I'm in a position yet to do so as a new graduate with this being my first full time job in my field.

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What's the best way to go about this? I'm thinking about bringing up that other companies have expressed interest and was wondering if the salary is negotiable. Would a company consider retracting their offer if I was to ask something like this? I'm fine with the starting salary $60k (majored in aerospace engineering) and I'm really excited about the job so I don't want to risk losing the opportunity but if I can squeeze some more money out and maybe get $65k I don't see why not try.

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