Marcus had been looking at Katie, debating the pros and cons of staying when he was pulled out of his thoughts by someone saying his name. He turned towards the voice and raised an eyebrow as a beer was being handed towards him. He took the beer somewhat reluctantly, trying to place who this bloke was. He looked...vaguely familiar but he was fairly certain he'd never actually spoken to him in his life. He looked around another moment, trying to find the people he knew would be here and then narrow down names from there.
After a moment, he turned back to him, assuming this must be the host. What was his name? Hooper? Maybe? Fuck. He didn't know. He'd just skip the names. He wasn't exactly surprised by the less than warm welcome he was receiving. "Open invite, right? Thought I'd come and make some new friends," he said, flashing a quick sarcastic smile before dropping it just as quickly. Still. He didn't want to be kicked out before he got to talk to Katie so, he might as well attempt at being nice. "Thanks," he said, sounding mostly insincere, as he held the beer up. With his luck they'd bloody poisoned it or some shite.