unidentified spider

unidentified spider

Observation - unidentified spider. Description: Just 9 or 10mm across This spider is one of those that appears to display intelligence and excellent eyesight... when something comes close to it, the spider does not simply cower or run away, it responds by lifting it's legs, moving just slightly, appar

Just 9 or 10mm across
This spider is one of those that appears to display intelligence and excellent eyesight... when something comes close to it, the spider does not simply cower or run away, it responds by lifting it's legs, moving just slightly, apparently watching!

Any ideas what it is? I found it racing across my living room floor, but does it belong in the garden?