The former Leeds United man looked happy to be training with his new team-mates.
The deal, which was for an undisclosed fee, was finalised yesterday after days of speculation.
The 22-year-old, who also had an offer on the table from Everton, was out of contract at Elland Road this summer which saw the Championship club open to selling one of their prized assets.
Byram looked at ease in the session and seemed to be taken under the wing of club captain Mark Noble who clearly seemed keen to welcome the new signing.
The talented right-back, who has been playing most of his football predominantly on the right-wing in recent months, will of course be hoping to feature in the game with Manchester City on Saturday. However he knows he may have to wait for his chance, just as Michail Antonio did after making the switch from Nottingham Forest.