The Reds will tackle Actual Madrid on the Stade de France, simply north of the town, on Saturday night.
As many as 50,000 supporters, largely ticketless, started gathering early within the day in several elements of the town, however police reminded them to be cautious.
Merseyside Police’s Liverpool matchday policing Twitter account posted: “Simply been made conscious of an tried theft up on the stadium.
“What seems to be native youths snatching off individuals and operating off.
“Take care of you belongings. Look out for one another. Keep protected.”
Liverpool nice Kenny Dalglish, UFC fighter Paddy Pimblett and musician Ian Broudie joined an enormous sea of crimson shirts within the Cours de Vincennes space within the south east of the town, the place a fan zone has been arrange.
Pimblett was greeting followers in a Liverpool hat, whereas Broudie carried out in entrance of the group.
Footballs had been kicked within the air and banners flown whereas flares – which had been prohibited by French authorities – had been let off within the fan zone.
Some followers had been hanging excessive above the group on lampposts, letting off flares.
The massive crowd then sang the membership’s unofficial anthem You’ll By no means Stroll Alone earlier than cheering Dalglish to a stage.
He instructed the group how outstanding Liverpool’s season had been earlier than followers chanted his identify.
A heavy police presence is within the space, together with armed officers.
Supporter Ricky White, 45, from Aintree, instructed the PA information company: “I’m nervous now, listening to King Kenny converse, seeing the followers, I actually hope we do it.
“It is a particular membership which deserves success, I simply hope it occurs.”
John Racks, 39, from the Wirral, mentioned: “Yeah, the ingesting began early, the solar’s out now and it’s attending to my head a bit.
“I’d prefer to say at practically 40 I’m cautious however I type of acquired misplaced and began ingesting this morning, now I’m smashed.
“The environment right here is boss, the town is crimson.”
One other mentioned: “I’m sat right here on high of some statue in Paris with my mates, there’s nothing extra you want. Only a few beers and hopefully a win for the Reds, pretty.”
Followers had been carrying massive bins of beer and singing about crew supervisor Jurgen Klopp and the gamers.
Luke Queens, 23, mentioned: “I’m correct nervous – assured within the crew but it surely’s a remaining isn’t it?
“I hope the beer settles my nerves earlier than then, we want the primary purpose.”