If you are a student at another university or FE college it is likely that your Union has a reciprocal membership agreement with Strathclyde. This means that you will be able to access Strathclyde Union on production of your student card. You may also be able to sign in guests, though this depends on the agreement your Union has with ours.
To check how many guests you can sign in, contact deputypresident@theunion.strath.ac.uk
As a guide, students at Glasgow Caledonian and Glasgow University can sign in 4 guests, students at the Glasgow FE colleges can sign in 2.