Am I overthinking this?

I did a course and as I was leaving and went to the reception there were 3 guys talking and stopped when I asked one of the guys that work there if I have to sign out and he said yes so I signed and they never carried on speaking. Then I look up and noticed it was my other coach who is meant to not be behind the reception desk and I said "oh hi" when i saw him and one of the guys said "have you never seen Joe behind a desk before" while laughing and then I said it was my second time here. My coach then asked me how my course was and I said good thanks and then I said thank you bye

Am I overthinking this? I had to look at him for a few seconds and realised it was him. Did I act weird and am I overthinking this?

Am I overthinking this?
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