When I go for dinner at restaurant, how to calm a baby down, my LO just don't like me to sit down and not moving. I was using baby carrier while eating and he will start to make noise and shout and keep wanting to eat what I eat.. I offer LO milk but he don't want to drink.. LO just want to shout and jump. LO can't sit at baby chair yet.. LO is going to 7 months.

Y he can't sit at baby chair yet? I would think 7 month old is ok . Maybe not very stable yet but still can sit high chair

be firm and practise at home before heading out for meals. keep repeating and asking him to remain seated quietly

I made my son sit in a baby chair at all times for all his meals since he was 6 months old.

put him in a baby chair, if he is already taking solid, offer some food and eat together

take turn with someone. It's normal for young children to be like this.

Sounds perfectly normal. have you tried distracting him with toys?