Wolf:it is ABSOLUTELY assur to have your toes uncovered while you are davening.
A. Please present a source for this.
B. Please prove that indicates that voluntarily saying tehillim is the same as davening.
A. S”A 91:5 It is assur to pray shmonei esrei with uncovered feet unless it respectable enough to stand before an important person in this fashion. (Although this issur is obviously not as absolute as “more” has paskened)
B. Reciting Tehillim does not have the same laws as praying shemonei esrei. We know that by Kriyat Shema that there is only an issur to recite if your eyes or heart can see an Erva as we see in S”A 74:1 and 75:6. If your feet are uncovered, see M”B 74:21 that says it’s completely muttar. Reciting tehillim is not more chamur than reciting portions of the Torah that we are commanded to recite M’doraysa.