Just wanted a bit of advice.Started a new job in august with one other guy starting a week before.Last weekend 10 of us met for drinks. I was asked if I was single by a different colleague I said yes.I then spent a few hours with the group but mainly speaking with the new guy.Just because no one else was speaking to either of us much.He offered me a lift home I declined but let him drop me to the tube 2 minutes drive. Forward to Monday morning the team are talking about the night out making out some hook up happened as we left together.It didn’t.The guy is a bit shy and just laughs it off I just ignore it completely.I don’t give a flying duck about my colleagues tbh.But since the weekend he is being extra friendly holding doors,complemting my outfits,offering to help me with tasks I did last week alone and overdoing the chit chat.I don’t want to be a witch or a rooster tease but I’m not interested.We have been quite pleasant to each other since working and now it’s becoming a bit to friendly which I don’t want.Just wondering what I could do to discourage him from showing interest without looking like a total witch? This is why I miss working from home