Just remember its hard work.
Customers are dicks but the good ones will get to know you, seek you out and make your working life easier
'I was just riding along when...' - hands you remnants of bicycle
'I bought it from Halfords and 'xxxx' happened' - insert mechanical mishap here/ hands you remnants of bicycle
'can you restore this?' - hands you remnants of bicycle
You get the idea - My personal favourite (and many others on RB) is 'Im and engineer!' - punch them in the dick and eject them from the shop immediately
Dont do what I did, which is upstage the existing workshop guy by being A: Better, B: Better and er, C; Better. He thought he was going to be WS manager and it ended up being someone unexpected, leaving me to put the ass into assistant workshop manager. He then dripped poison into everything that I did , eventually getting me sacked. I was simply better because I had been spannering for some 30 years - making my own mistakes and learning from them. He had a Cytech certificate and that was that.
So being better at tasks than your established work colleagues can be intimidating and put them off you straight away. Be a human being and explain how you got to that point without showing off or name dropping - 'I worked at XYZ' is fascinating but wont exactly endear you to others even it is true and you still have the business cards with your name and job title - I learnt that very quickly
I failed an interview (What? LGF actually failed at something?? Never!) Anyway, it was for a well known long established distributor. Lots of brands that I liked and had a retro bent to many of the bikes and parts they sold - perfect for me. A Zoom interview with the sales guy went really well, the in-person interview was going really well, then the Owner came in...
The room temperature dropped by many degrees, I knew the interview was lost instantly - he didnt like me one bit. Maybe I was too ebullient, too effusive, heck it was post covid - I was just happy to see people! But I knew it wasnt to be within seconds of him talking to me. The sales guy knew it too and was visibly annoyed at the owners' reaction. I got a short email to say that I didnt have the experience required. Yet, some of their staff had only been there a few months themselves and one didnt even ride a bicycle?
Hmmm!
Sooo, be yourself but dont give too much away, keep emotions in check but allow your personality to shine through, dont lie about anything but feel free to show off a little.
Good luck (again!)