If it comes up within your first three months I would suggest maybe going but leaving after an hour just so you don't seem antisocial. I'm with you in that my t

If it comes up within your first three months I would suggest maybe going but leaving after an hour just so you don't seem antisocial. I'm with you in that my time outside of the job is precious to me but turning down every invite might give the wrong impression. If it's a regular thing like say Friday every other week I don't think people will care a whole lot if you skip but if it's an occasion where you just finished a project or you are celebrating with another company I would suggest going just so it doesn't come across as being rude unless you can come up with a really good excuse such as "I would but I kind of promised I would take the kids to see XYZ tonight at the theater". Anyway that's my limited experience 2cents.