Explain yourself to the person
Tell them how you weren’t being yourself straight forwardly, yes they might think you’re overthinking what previously happened but if you truly believe you did leave a bad impression instead of faking it and beating around the bush. Be straight forward “hey I was not acting myself on Tuesday and I’m sorry for that if we can start again that would be great”
Don’t look too desperate
When trying to make up for the bad impression that was left, don’t go scraping your legs across the ground… that is not a sign of good character instead you must be more in the middle – of course try a little harder but don’t over work yourself… let it come out naturally.
Be relaxed when speaking to the person
You need to remain calm, that is the only way you can be yourself and let things flow naturally rather than forcing it out of yourself.
Still no improvement?
Okay, so you tried and still there is no improvement, go ahead and read step one again – give them reasoning to your first impression being poor and why it has continued.