Anyone saying the OP & other Christians of being boisterous or bring up their belief when no one askee may not be familiar with the The Great Commission mandate directly from Christ:
“…go and make disciples of all nations,baptizing them in the name of the Father and of the Son and of the Holy Spirit, 20 and teaching them to obey everything I have commanded you.” (Matthew 28:19). This mandate is essentially evangelism/sharing. Christianity isn’t the ONLY faith with mandates. Others also have some extreme/divisive ones but I’m not here to get into that.
Back to the OP…HOW that’s done is a totally separate issue. When sharing, you have to tailor your approach to where a person is in life, how they think, and meet them where they are not where you feel like they need to be. Basically exercise discernment/emotional IQ/“read the room” with your approach. Otherwise, you’ll just “kill the witness” and not be effective. Some people simply lack the ability to have nuanced conversations and be persuasive, regardless of the discussion.
Moreso than that… if you’re not new to this then you know there are some people who are going to offer visceral pushback no matter HOW you approach the subject. And you have to learn to be okay with that. Far too often I see people get upset that the other person gets upset. Is the goal to successfully convert the person in one conversation/win a debate?
Once you’ve had the initial discussion or simply shared the information, you’ve done your part. It may not be your job to argue or engineer that person’s entire process so don’t automatically assume it’s your duty to do so. Some plant, some water, but God gives the increase (1 Corinthians 3:6).