السلام عليكم ورحمة الله وبركاته Ya sheikh sometimes I have to go to uni early and there's one girl in the class can I be in the class alone with her if I stay far from her and avoid speaking to her. The walls are made of glass everything's visible outside is it still considered seclusion?

Ustadh AbdulAziz al-Haqqan
Staying far from her and not speaking does not lift the khalwah, what lifts it is that people can come in and can hear you, not only see you. So, enter when someone else arrives and enters too.