Advice

I went to a baby shower(masks on) and I didn't know anyone I sat in a table in the back. The host said hello and another person but like two hours I sat in the back so there were couples and families but I was wondering how do I talk converse with people because I feel alone excluded.

In college I remember my first semester I would only talk to my classmate/partner its been hard to talk to New people

But I hate putting the pressure on the host I went to my friends wedding and the bride and groom both came and checked if I was okay and told his best man to come sit with me so I'm not lonely.

Its like is there anything I can do please share any advice I really need a big Sister here

Is there anyone I can add on here you can give me more tips being less shy more confident any books you recommend