How to make baby laugh

Hi mummies, I have a 4 months old baby. My baby seems to laugh at his daddy, my helper more than me. Although I do spend time with him from feeding him, changing his diaper, calming him , putting him to sleep, he doesn't laugh much at me even when I try to make funny sounds/faces or do funny things. But the same thing if daddy or helper does it, he will laugh. Did anyone go through something similar? I am trying not to be oversensitive about it but just worried my son may not want to bond with me. Any tips what can I do? 🙏